.net Framework Class Library(FCL)

weixin_34391854發表於2014-08-04

from:http://msdn.microsoft.com/en-us/library/ms229335.aspx

我們平時在VS.net裡引用的那些類庫就是從這裡來的

The .NET Framework class library is a library of classes, interfaces, and value types that provides access to system functionality and is designed to be the foundation on which .NET Framework applications, components, and controls are built.

Namespaces

The .NET Framework class library provides the following namespaces, which are documented in detail in this reference.

Accessibility: Contains types that are part of a managed wrapper for the Component Object Model (COM) accessibility interface.
Microsoft.Aspnet.Snapin: Contains classes that are necessary for the ASP.NET management console application to interact with the Microsoft Management Console (MMC).
Microsoft.Build.BuildEngine: Contains the classes that represent the MSBuild engine.
Microsoft.Build.Construction: Contains types that the MSBuild object model uses to construct project roots with unevaluated values.
Microsoft.Build.Conversion: Contains types that Visual Studio uses to convert project files.
Microsoft.Build.Debugging: Contains types for managing the debugger.
Microsoft.Build.Evaluation: Contains types that the MSBuild object model uses to evaluate projects.
Microsoft.Build.Exceptions: Contains exception types used by the MSBuild engine.
Microsoft.Build.Execution: Contains types that the MSBuild object model uses to build projects.
Microsoft.Build.Framework: Contains classes that make up the tasks, loggers, and events of MSBuild.
Microsoft.Build.Framework.XamlTypes: Contains classes used to represent XAML types parsed from files, rules, and other sources.
Microsoft.Build.Logging: Contains types used for logging the progress of a build.
Microsoft.Build.Tasks: Contains the implementation of all tasks shipping with MSBuild.
Microsoft.Build.Tasks.Deployment.Bootstrapper: Contains classes used internally by MSBuild.
Microsoft.Build.Tasks.Deployment.ManifestUtilities: Contains classes used internally by MSBuild.
Microsoft.Build.Tasks.Hosting: Contains classes used internally by MSBuild.
Microsoft.Build.Tasks.Windows: Contains classes used internally by MSBuild.
Microsoft.Build.Tasks.Xaml: Contains types that process XAML.
Microsoft.Build.Utilities: Provides helper classes that you can use to create your own MSBuild loggers and tasks.
Microsoft.CSharp: Contains classes that support compilation and code generation using the C# language.
Microsoft.CSharp.RuntimeBinder: Contains types that support interoperation between the dynamic language runtime (DLR) and C#.
Microsoft.Data.Entity.Build.Tasks: Contains types that represent MSBuild tasks used by the ADO.NET Entity Data Model Designer.
Microsoft.JScript: Contains classes that support compilation and code generation using the JScript language.
Microsoft.SqlServer.Server: Contains classes that are specific to the integration of the.NET Framework common language runtime (CLR) component into Microsoft SQL Server, and the SQL Server database engine process execution environment.
Microsoft.VisualBasic: Contains classes that support compilation and code generation using the Visual Basic language.
Microsoft.VisualBasic.Activities: Contains classes that provide Visual Basic expressions that can be bound to In and Out arguments, and Visual Basic expression settings.
Microsoft.VisualBasic.Activities.XamlIntegration: Provides a type converter and XAML serializer for Microsoft.VisualBasic.Activities.VisualBasicSettings.
Microsoft.VisualBasic.ApplicationServices: Contains types that support the Visual Basic Application Model and provide access to application information.
Microsoft.VisualBasic.Compatibility.VB6: Contains types used by tools for upgrading from Visual Basic 6.0 to Visual Basic .NET.
Microsoft.VisualBasic.CompilerServices: Contains internal-use only types that support the Visual Basic compiler.
Microsoft.VisualBasic.Devices: Contains types that support the My objects related to devices in Visual Basic.
Microsoft.VisualBasic.FileIO: Contains types that support the My file system object in Visual Basic.
Microsoft.VisualBasic.Logging: Contains types that support the My logging objects in Visual Basic and provides a simple log listener that directs logging output to file.
Microsoft.VisualBasic.MyServices: Contains types that support My in Visual Basic.
Microsoft.VisualBasic.MyServices.Internal: Contains internal-use only types that support My in Visual Basic.
Microsoft.VisualC: Contains types that support the Visual C++ compiler.
Microsoft.VisualC.StlClr: Contains types that implement the STL/CLR Library.
Microsoft.VisualC.StlClr.Generic: Contains types that implement the generic interface to the STL/CLR Library.
Microsoft.Win32: Provides two types of classes: those that handle events raised by the operating system and those that manipulate the system registry.
Microsoft.Win32.SafeHandles: Contains classes that are abstract derivations of safe handle classes that provide common functionality supporting file and operating system handles.
Microsoft.Windows.Themes: Provides exposure to the set of themes defined by Windows Presentation Foundation (WPF).
System: Contains fundamental classes and base classes that define commonly used value and reference data types, events and event handlers, interfaces, attributes, and processing exceptions. Other classes provide services supporting data type conversion, method parameter manipulation, mathematics, remote and local program invocation, application environment management, and supervision of managed and unmanaged applications.
System.Activities: Contains all the classes necessary to create and work with activities. The classes in this namespace enable you to define activities, the data flow into and out of activities, and variables.
System.Activities.Core.Presentation: Contains helper classes used in the default and extensibility scenarios for Windows Workflow Foundation.
System.Activities.Core.Presentation.Factories: Provides factories for creating activities that interact with collections and enable control flow in Windows Workflow Foundation.
System.Activities.Core.Presentation.Themes: Contains a class that is a collection of style configuration values used by the activity designers.
System.Activities.Debugger: Contains classes that provide support for debugging workflows.
System.Activities.DurableInstancing: Contains the SqlWorkflowInstanceStore class, which provides durability to workflow instances, and its helper classes.
System.Activities.ExpressionParser: Contains classes that support the compilation of expressions.
System.Activities.Expressions: Contains classes and expression activities that support the use of expressions in a workflow.
System.Activities.Hosting: Contains classes that provide the base support for hosting and executing a workflow.
System.Activities.Persistence: Contains classes for capturing an object’s state independent of process or machine information.
System.Activities.Presentation: Contains base activity designer classes used to create custom activity designers.
System.Activities.Presentation.Converters: Provides converts for arguments, UI property data, and items in the editing model of the Windows Workflow Foundation.
System.Activities.Presentation.Debug: Contains classes that provide breakpoint management for a debugging process.
System.Activities.Presentation.Hosting: Contains classes that enable the host to interact with assemblies, commands, and imported namespaces.
System.Activities.Presentation.Metadata: Contains classes that enable you to work with custom attributes of elements.
System.Activities.Presentation.Model: Contains classes that enable you to work with items in the model tree of the designer, such as accessing the model items properties and attached properties. Also provides functionality to manage the model tree.
System.Activities.Presentation.PropertyEditing: Contains classes that enable updating properties by providing property editors, category editors, and access to properties, property values, and filters.
System.Activities.Presentation.Services: Provides classes that enable interacting with the model tree to perform tasks such as creating and locating model items, and mapping view items with model items.
System.Activities.Presentation.Toolbox: Provides support for classifying and using tools when rehosting outside of Visual Studio 2010.
System.Activities.Presentation.Validation: Contains classes that provide activity validation functionality for activities.
System.Activities.Presentation.View: Provides functionality related to the view elements in the workflow designer, including accessing and creating view elements, accessing commands, working with the view state, selections, and the expression textbox.
System.Activities.Statements: Contains activities that can be used to create workflows, for flow control, interacting with collections and variables, exceptions, compensation, transactions, and interacting with legacy workflows.
System.Activities.Tracking: Contains classes used to create and interact with workflow tracking records.
System.Activities.Validation: Contains classes used for custom activity validation.
System.Activities.XamlIntegration: Contains classes that provide support for the serialization of activities into XAML.
System.AddIn: Contains an attribute for identifying add-ins.
System.AddIn.Contract: Contains types that provide the basis for communication between components that are updated independently.
System.AddIn.Contract.Automation: Contains types that components use to access type information and invoke type members.
System.AddIn.Contract.Collections: Contains types used to implement collection classes for add-in development.
System.AddIn.Hosting: Provides types for discovering, registering, activating, and controlling add-ins.
System.AddIn.Pipeline: Provides classes for constructing the communication pipeline between a host application and an add-in.
System.CodeDom: Contains classes that can be used to represent the elements and structure of a source code document. These elements can be used to model the structure of a source code document that can be output as source code in a supported language using the functionality provided by the System.CodeDom.Compiler namespace.
System.CodeDom.Compiler: Contains types for managing the generation and compilation of source code in supported programming languages. Code generators can each produce source code in a particular programming language based on the structure of Code Document Object Model (CodeDOM) source code models consisting of elements provided by the System.CodeDom namespace.
System.Collections: Contains interfaces and classes that define various collections of objects, such as lists, queues, bit arrays, hashtables and dictionaries.
System.Collections.Concurrent: Contains interfaces and classes that define various collection objects for concurrent processing.
System.Collections.Generic: Contains interfaces and classes that define generic collections, which enable users to create strongly typed collections that provide better type safety and performance than non-generic strongly typed collections.
System.Collections.ObjectModel: Contains classes that can be used as collections in the object model of a reusable library. Use these classes when properties or methods return collections.
System.Collections.Specialized: Contains specialized and strongly typed collections; for example, a linked list dictionary, a bit vector, and collections that contain only strings.
System.ComponentModel: Provides classes that are used to implement the run-time and design-time behavior of components and controls. This namespace includes the base classes and interfaces for implementing attributes and type converters, binding to data sources, and licensing components.
System.ComponentModel.Composition: Provides classes that constitute the majority of the Managed Extensibility Framework (MEF).
System.ComponentModel.Composition.Hosting: Provides classes for MEF that are useful to developers of extensible applications, or hosts.
System.ComponentModel.Composition.Primitives: Provides the primitive types underlying the MEF programming model.
System.ComponentModel.Composition.ReflectionModel: Provides types for the Managed Extensibility Framework (MEF) that are useful to developers using a reflection-based programming model.
System.ComponentModel.DataAnnotations: Provides attribute classes that are used to define metadata for ASP.NET Dynamic Data controls.
System.ComponentModel.Design: Contains classes that developers can use to build custom design-time behavior for components and user interfaces for configuring components at design time. The design time environment provides systems that enable developers to arrange components and configure their properties.
System.ComponentModel.Design.Data: Contains classes for implementing design-time behavior of data-related components.
System.ComponentModel.Design.Serialization: Provides types that support customization and control of serialization at design time.
System.Configuration: Contains the types that provide the programming model for handling configuration data.
System.Configuration.Assemblies: Contains classes that are used to configure an assembly.
System.Configuration.Install: Provides classes that enable you to write custom installers for your own components. The Installer class is the base class for all custom installers in the .NET Framework.
System.Configuration.Provider: Contains the base classes shared by both server and client applications to support a pluggable model to easily add or remove functionality.
System.Data: Contains classes that constitute most of the ADO.NET architecture. The ADO.NET architecture enables you to build components that efficiently manage data from multiple data sources.
System.Data.Common: Contains classes shared by the .NET Framework data providers. A .NET Framework data provider describes a collection of classes used to access a data source, such as a database, in the managed space.
System.Data.Common.CommandTrees: Provides classes to build expressions that make up a command tree.
System.Data.Design: Contains classes that can be used to generate a custom typed dataset.
System.Data.Entity.Design: Contains classes to generate Entity Data Model (EDM) files and object source code.
System.Data.Entity.Design.AspNet: Contains the Entity Data Model (EDM) build providers for the ASP.NET build environment.
System.Data.Entity.Design.PluralizationServices: Provides types for changing words from singular to plural form, and vice versa.
System.Data.EntityClient: Contains the .NET Framework Data Provider for the Entity Framework.
System.Data.Linq: Contains classes that support interaction with relational databases in LINQ to SQL applications.
System.Data.Linq.Mapping: Contains classes that are used to generate a LINQ to SQL object model that represents the structure and content of a relational database.
System.Data.Mapping: Provides types for storing data mapping information.
System.Data.Metadata.Edm: Contains a set of types that represent concepts throughout the models used by the Entity Framework and a set of classes that help applications work with metadata.
System.Data.Objects: Includes classes that provide access to the core functionality of Object Services.
System.Data.Objects.DataClasses: Includes classes that are base classes for types that are defined in an Entity Data Model (EDM), base classes for the types that are returned by navigation properties, and classes that define attributes that map common language runtime (CLR) objects to types in the conceptual model.
System.Data.Objects.SqlClient: Provides a type that contains common language runtime (CLR) methods that translate to database functions.
System.Data.Odbc: Contains classes that encapsulate the .NET Framework Data Provider for ODBC, which describes a collection of classes used to access an ODBC data source in the managed space.
System.Data.OleDb: Contains classes that encapsulate the .NET Framework Data Provider for OLE DB, which describes a collection of classes used to access an OLE DB data source in the managed space.
System.Data.OracleClient: Contains classes that encapsulate the .NET Framework Data Provider for Oracle, which describes a collection of classes used to access an Oracle data source in the managed space.
System.Data.Services: Provides access to classes used to build WCF Data Services.
System.Data.Services.BuildProvider: Contains classes that generate C# or Visual Basic code for a WCF Data Services client application based on the metadata returned by the data service.
System.Data.Services.Client: Represents the .NET Framework Client library that applications can use to interact with WCF Data Services.
System.Data.Services.Common: Contains a class that denotes the key property or properties of an entity.
System.Data.Services.Providers: Provides a series of interfaces that are implemented to define a custom data service provider for WCF Data Services.
System.Data.Sql: Contains classes that support SQL Server-specific functionality. The API extensions in this class add to the .NET Framework Data Provider for SQL Server (System.Data.SqlClient).
System.Data.SqlClient: Contains classes that encapsulate the .NET Framework Data Provider for SQL Server. The .NET Framework Data Provider for SQL Server describes a collection of classes used to access a SQL Server database in the managed space.
System.Data.SqlTypes: Contains classes for native data types within SQL Server. These classes provide a faster alternative to other data types. Using the classes in this namespace helps prevent type conversion errors caused in situations where loss of precision could occur. Because other data types are converted to and from SqlTypes behind the scenes, explicitly creating and using objects within this namespace results in faster code as well.
System.Deployment.Application: Provides types to create custom upgrade behavior in ClickOnce applications.
System.Device.Location: Contains classes that provide a single API to encapsulate the multiple location providers on a computer and support seamless prioritization and transitioning between them. An application developer who uses this API does not need to know which location-sensing technologies are available on a particular computer and is freed from the burden of tailoring an application to a specific hardware configuration
System.Diagnostics: Provides classes that enable you to interact with system processes, event logs, and performance counters. This namespace also provides classes that let you debug your application and trace the execution of your code.
System.Diagnostics.CodeAnalysis: Contains classes for interaction with code analysis tools. Code analysis tools are used to analyze code for conformance to coding conventions such as naming or security rules.
System.Diagnostics.Contracts: Contains static classes for representing program constructs such as preconditions, postconditions, and invariants.
System.Diagnostics.Contracts.Internal: Provides classes that the binary rewriter can use to handle a contract failure.
System.Diagnostics.Design: Contains classes that can be used to extend design-time support for application monitoring and instrumentation.
System.Diagnostics.Eventing: Contains types to support implementation of an application on Windows Vista. The instrumentation, when enabled, logs event data to the Event Tracing for Windows (ETW) tracing subsystem.
System.Diagnostics.Eventing.Reader: Contains types to support reading from and managing event logs.
System.Diagnostics.PerformanceData: Contains classes that are used to provide counter data, which expose performance metrics to consumers.
System.Diagnostics.SymbolStore: Provides classes that enable you to read and write debug symbol information, such as source line to Microsoft intermediate language (MSIL) maps. Compilers targeting the .NET Framework can store the debug symbol information into programmer's database (PDB) files. Debuggers and code profiler tools can read the debug symbol information at run time.
System.DirectoryServices: Provides easy access to Active Directory from managed code. The namespace contains two component classes, DirectoryEntry and DirectorySearcher, which use the Active Directory Services Interfaces (ADSI) technology. ADSI is the set of interfaces that Microsoft provides as a flexible tool for working with a variety of network providers. ADSI gives the administrator the ability to locate and manage resources on a network with relative ease, regardless of the network's size.
System.DirectoryServices.AccountManagement: Provides uniform access and manipulation of user, computer, and group security principals across multiple principal stores.
System.DirectoryServices.ActiveDirectory: Provides a high-level abstraction object model that builds around Active Directory directory service tasks. The Active Directory directory service concepts such as forest, domain, site, subnet, partition, and schema are part of the object model.
System.DirectoryServices.Protocols: Provides the methods defined in the Lightweight Directory Access Protocol (LDAP) version 3 and Directory Services Markup Language (DSML) version 2.0 standards.
System.Drawing: Provides access to GDI+ basic graphics functionality. More advanced functionality is provided in the System.Drawing.Drawing2D, System.Drawing.Imaging, andSystem.Drawing.Text namespaces.
System.Drawing.Design: Contains classes that extend design-time user interface (UI) logic and drawing. You can further extend this design-time functionality to create custom toolbox items, type-specific value editors that can edit and graphically represent values of their supported types, or type converters that can convert values between certain types. This namespace provides the basic frameworks for developing extensions to the design-time UI.
System.Drawing.Drawing2D: Provides advanced two-dimensional and vector graphics functionality. This namespace includes the gradient brushes, the Matrix class (used to define geometric transforms), and the GraphicsPath class.
System.Drawing.Imaging: Provides advanced GDI+ imaging functionality. Basic graphics functionality is provided by the System.Drawing namespace.
System.Drawing.Printing: Provides print-related services. Typically, you create a new instance of the PrintDocument class, set the properties that describe what to print, and call the Print method to actually print the document.
System.Drawing.Text: Provides advanced GDI+ typography functionality. Basic graphics functionality is provided by the System.Drawing namespace. The classes in this namespace enable users to create and use collections of fonts.
System.Dynamic: Provides classes and interfaces that support the dynamic language runtime (DLR).
System.EnterpriseServices: Provides an important infrastructure for enterprise applications. COM+ provides a services architecture for component programming models deployed in an enterprise environment. This namespace provides .NET Framework objects with access to COM+ services, making the .NET Framework objects more practical for enterprise applications.
System.EnterpriseServices.CompensatingResourceManager: Provides classes that enable you to use a Compensating Resource Manager (CRM) in managed code. A CRM is a service provided by COM+ that enables you to include non-transactional objects in Microsoft Distributed Transaction Coordinator (DTC) transactions. Although CRMs do not provide the capabilities of a full resource manager, they do provide transactional atomicity (all-or-nothing behavior) and durability through the recovery log.
System.Globalization: Contains classes that define culture-related information, including the language, the country/region, the calendars in use, the format patterns for dates, currency, and numbers, and the sort order for strings. These classes are useful for writing globalized (internationalized) applications.
System.IdentityModel.Claims: Contains types that support the use of claims in the Extensible Identity Model.
System.IdentityModel.Policy: Contains types to build or use authorization policies in Windows Communication Foundation (WCF).
System.IdentityModel.Selectors: Contains the types that provide security tokens for outgoing SOAP messages and that authenticate security tokens in incoming SOAP messages.
System.IdentityModel.Tokens: Contains the types that are related to the predefined security tokens that ship with Windows Communication Foundation (WFC).
System.IO: Contains types that enable synchronous and asynchronous reading and writing on data streams and files.
System.IO.Compression: Contains classes that provide basic compression and decompression for streams.
System.IO.IsolatedStorage: Contains types that support the creation and use of isolated stores. With these stores, you can read and write data that less trusted code cannot access and help prevent the exposure of sensitive information that can be saved elsewhere on the file system. Data is stored in compartments that are isolated by the current user and by the assembly in which the code exists.
System.IO.Log: Contains types for implementing a custom diagnostic logging or transaction processing system.
System.IO.MemoryMappedFiles: Provides classes for using a memory-mapped file, which maps the contents of a file to an application's logical address space.
System.IO.Packaging: Contains types that support storage of multiple data objects in a single container.
System.IO.Pipes: Contains types that provide a means for interprocess communication through anonymous and/or named pipes.
System.IO.Ports: Contains classes that control serial ports, providing a framework for synchronous and event-driven I/O, access to pin and break states, access to serial driver properties, and enumerations for specifying port characteristics.
System.Linq: Contains classes and interfaces that support queries that use Language-Integrated Query (LINQ).
System.Linq.Expressions: Contains types that enable language-level code expressions to be represented as objects in the form of expression trees.
System.Management: Provides access to a rich set of management information and management events about the system, devices, and applications instrumented to the Windows Management Instrumentation (WMI) infrastructure.
System.Management.Instrumentation: Provides the classes necessary for instrumenting applications for management and exposing their management information and events through WMI to potential consumers.
System.Media: Contains classes for playing sound files and accessing system sounds.
System.Messaging: Provides classes that enable you to connect to, monitor, and administer message queues on the network and send, receive, or peek messages.
System.Messaging.Design: Contains classes that can be used to extend design-time support for System.Messaging classes.
System.Net: Provides a simple programming interface for many of the protocols used on networks today. The WebRequest and WebResponse classes form the basis of what are called pluggable protocols, an implementation of network services that enables you to develop applications that use Internet resources without worrying about the specific details of the individual protocols.
System.Net.Cache: Defines the types and enumerations used to define cache policies for resources obtained using the WebRequest and HttpWebRequest classes.
System.Net.Configuration: Contains classes that applications use to programmatically access and update configuration settings for the System.Net namespaces.
System.Net.Mail: Contains classes used to send electronic mail to a Simple Mail Transfer Protocol (SMTP) server for delivery.
System.Net.Mime: Contains types that are used to represent Multipurpose Internet Mail Exchange (MIME) headers. These types are used with the types in the System.Net.Mailnamespace to specify Content-Type, Content-Disposition and Content-transfer-Encoding headers when sending e-mail using the SmtpClient class.
System.Net.NetworkInformation: Provides access to network traffic data, network address information, and notification of address changes for the local computer. The namespace also contains classes that implement the Ping utility. You can use Ping and related classes to check whether a computer is reachable across the network.
System.Net.PeerToPeer: Provides access to peer networking functionality.
System.Net.PeerToPeer.Collaboration: Provides types that enhance peer-to-peer networking functionality and provide capabilities for serverless managed collaboration sessions.
System.Net.Security: Provides network streams for secure communications between hosts.
System.Net.Sockets: Provides a managed implementation of the Windows Sockets (Winsock) interface for developers who need to help control access to the network.
System.Numerics: Contains types that complement the numeric primitives, such as Byte, Double, and Int32, that are defined by the .NET Framework.
System.Printing: Contains types to support printing.
System.Printing.IndexedProperties: Contains classes that provide access to the properties of print system objects without using reflection, and enable rapid copying of the property settings to another object of the same type.
System.Printing.Interop: Provides types to support interconversion of managed PrintTicket objects and unmanaged Graphics Device Interface (GDI) DEVMODE structures.
System.Reflection: Contains classes and interfaces that provide a managed view of loaded types, methods, and fields, with the ability to dynamically create and invoke types.
System.Reflection.Emit: Contains classes that enable a compiler or tool to emit metadata and Microsoft intermediate language (MSIL) and optionally generate a PE file on disk. The primary clients of these classes are script engines and compilers.
System.Resources: Provides classes and interfaces that enable developers to create, store, and manage various culture-specific resources used in an application.
System.Resources.Tools: Contains the StronglyTypedResourceBuilder class, which provides support for strongly typed resources. Beginning with the .NET Framework version 2.0, this compile-time feature encapsulates access to resources by creating classes that contain a set of static read-only (get) properties, thus making it easier to consume resources.
System.Runtime: Contains advanced types that support diverse namespaces such as System, the Runtime namespaces, and the Security namespaces.
System.Runtime.Caching: Contains types that let you implement output caching in applications that are built on the .NET Framework.
System.Runtime.Caching.Configuration: Contains configuration handler classes for the .NET Framework caching feature.
System.Runtime.Caching.Hosting: Contains types that support the .NET Framework hosting environments that use caching features.
System.Runtime.CompilerServices: Provides functionality for compiler writers who use managed code to specify attributes in metadata that affect the run-time behavior of the common language runtime. The classes in this namespace are for compiler writers use only.
System.Runtime.ConstrainedExecution: Defines a set of types that enumerate and define a contract for reliability between the author of some code and the developers who take a dependency on that code. The types are intended for use in constrained execution regions (CERs) only.
System.Runtime.DurableInstancing: Contains classes that are used by the Windows Communication Foundation (WCF) infrastructure to implement a persistence provider.
System.Runtime.ExceptionServices: Provides classes for advanced exception handling.
System.Runtime.Hosting: Contains advanced types that are used in application activation within application domains.
System.Runtime.InteropServices: Provides a wide variety of members that support COM interop and platform invoke services. If you are unfamiliar with these services, see Interoperating with Unmanaged Code.
System.Runtime.InteropServices.ComTypes: Contains methods that are definitions of COM functions for managed code. These functions replace the now-obsolete UCOM methods in theSystem.Runtime.InteropServices namespace.
System.Runtime.InteropServices.Expando: Contains the IExpando interface, which lets you modify an object by adding or removing its members.
System.Runtime.Remoting: Provides classes and interfaces that enable developers to create and configure distributed applications.
System.Runtime.Remoting.Activation: Provides classes and objects that support server and client activation of remote objects.
System.Runtime.Remoting.Channels: Contains classes that support and handle channels and channel sinks, which are used as the transport medium when a client calls a method on a remote object.
System.Runtime.Remoting.Channels.Http: Contains channels that use the HTTP protocol to transport messages and objects to and from remote locations. By default, the HTTP channels encode objects and method calls in SOAP format for transmission, but other encoding and decoding formatter sinks can be specified in the configuration properties of a channel.
System.Runtime.Remoting.Channels.Ipc: Defines a communication channel for remoting that uses the Interprocess Communication (IPC) system of the Windows operating system. Because it does not use network communication, the IPC channel is much faster than the HTTP and TCP channels, but it can only be used for communication between application domains on the same physical computer.
System.Runtime.Remoting.Channels.Tcp: Contains channels that use the TCP protocol to transport messages and objects to and from remote locations. By default, the TCP channels encode objects and method calls in binary format for transmission, but other encoding and decoding formatter sinks can be specified in the configuration properties of a channel.
System.Runtime.Remoting.Contexts: Contains objects that define the contexts all objects reside within. A context is an ordered sequence of properties that defines an environment for the objects within it. Contexts are created during the activation process for objects that are configured to require certain automatic services such synchronization, transactions, just-in-time (JIT) activation, security, and so on. Multiple objects can live inside a context.
System.Runtime.Remoting.Lifetime: Contains classes that manage the lifetime of remote objects. Traditionally, distributed garbage collection uses reference counts and pinging for control over the lifetime of objects. This works well when there are a few clients per service, but does not scale well to thousands of clients per service. The remoting lifetime service associates a lease with each service, and deletes a service when its lease time expires. The lifetime service can take on the function of a traditional distributed garbage collector, and it also adjusts well when the numbers of clients per server increases.
System.Runtime.Remoting.Messaging: Contains classes used to create and remote messages. The remoting infrastructure uses messages to communicate with remote objects. Messages are used to transmit remote method calls, to activate remote objects, and to communicate information. A message object carries a set of named properties, including action identifiers, envoy information, and parameters.
System.Runtime.Remoting.Metadata: Contains classes and attributes that can be used to customize generation and processing of SOAP for objects and fields. The classes of this namespace can be used to indicate the SOAPAction, type output, XML element name, and the method XML namespace Uniform Resource Identifier (URI).
System.Runtime.Remoting.Metadata.W3cXsd2001: Contains the XML Schema Definition (XSD) defined by the World Wide Web Consortium (W3C) in 2001. The XML Schema Part 2: Datatypes specification from W3C identifies format and behavior of various data types. This namespace contains wrapper classes for the data types that conform to the W3C specification. All date and time types conform to the ISO standards specification.
System.Runtime.Remoting.MetadataServices: Contains the classes used by the Soapsuds.exe command line tool and the user code to convert metadata to and from XML schema for the remoting infrastructure.
System.Runtime.Remoting.Proxies: Contains classes that control and provide functionality for proxies. A proxy is a local object that is an image of a remote object. Proxies enable clients to access objects across remoting boundaries.
System.Runtime.Remoting.Services: Contains service classes that provide functionality to the .NET Framework.
System.Runtime.Serialization: Contains classes that can be used for serializing and deserializing objects. Serialization is the process of converting an object or a graph of objects into a linear sequence of bytes for either storage or transmission to another location. Deserialization is the process of taking in stored information and recreating objects from it.
System.Runtime.Serialization.Configuration: Contains classes used to read the values found in application configuration files in the <system.xml.serialization> section.
System.Runtime.Serialization.Formatters: Provides common enumerations, interfaces, and classes that are used by serialization formatters.
System.Runtime.Serialization.Formatters.Binary: Contains the BinaryFormatter class, which can be used to serialize and deserialize objects in binary format.
System.Runtime.Serialization.Formatters.Soap: Contains the SoapFormatter class, which can be used to serialize and deserialize objects in the SOAP format.
System.Runtime.Serialization.Json: Contains types for serializing objects to JavaScript Object Notation (JSON) and deserializing objects from JSON.
System.Runtime.Versioning: Contains advanced types that support versioning in side-by-side implementations of the .NET Framework.
System.Security: Provides the underlying structure of the .NET Framework security system, including base classes for permissions.
System.Security.AccessControl: Provides programming elements that control access to, and audit security-related actions on, securable objects.
System.Security.Authentication: Provides a set of enumerations that describe the security of a connection.
System.Security.Authentication.ExtendedProtection: Provides support for authentication using extended protection for applications.
System.Security.Authentication.ExtendedProtection.Configuration: Provides support for configuration of authentication using extended protection for applications.
System.Security.Cryptography: Provides cryptographic services, including secure encoding and decoding of data, as well as many other operations, such as hashing, random number generation, and message authentication.
System.Security.Cryptography.Pkcs: Provides programming elements for Public Key Cryptography Standards (PKCS), including methods for signing data, exchanging keys, requesting certificates, public key encryption and decryption, and other security functions.
System.Security.Cryptography.X509Certificates: Contains the common language runtime implementation of the Authenticode X.509 v.3 certificate. This certificate is signed with a private key that uniquely and positively identifies the holder of the certificate.
System.Security.Cryptography.Xml: Contains classes to support the creation and validation of XML digital signatures.
System.Security.Permissions: Defines classes that control access to operations and resources based on policy.
System.Security.Policy: Contains code groups, membership conditions, and evidence. These three types of classes are used to create the rules applied by the .NET Framework security policy system. Evidence classes are the input to security policy, and membership conditions are the switches; together these create policy statements and determine the granted permission set. Policy levels and code groups are the structure of the policy hierarchy. Code groups are the encapsulation of a rule and are arranged hierarchically in a policy level.
System.Security.Principal: Defines a principal object that represents the security context under which code is running.
System.Security.RightsManagement: Contains classes to support rights management of application-created content, such as content stored in a Package or XpsDocument.
System.ServiceModel: Contains the types necessary to build Windows Communication Foundation (WCF) service and client applications that can be used to build widely distributed applications.
System.ServiceModel.Activation: Contains the types required to construct and modify the dynamic creation of service hosts in a managed hosting environment.
System.ServiceModel.Activation.Configuration: Contains classes that represent the configuration elements in the SMSvcHost.exe.config file.
System.ServiceModel.Activities: Contains classes that enable you to send messages to and receive messages from workflows.
System.ServiceModel.Activities.Activation: Contains the WorkflowServiceHostFactory class that provides instances of WorkflowServiceHost in managed hosting environments where the host instance is created dynamically in response to incoming messages.
System.ServiceModel.Activities.Configuration: Contains classes that are used to configure workflow services. These classes allow you to apply service and endpoint behaviors and configure tracking.
System.ServiceModel.Activities.Description: Contains classes that enable you to control various behaviors related to workflow services.
System.ServiceModel.Activities.Presentation.Factories: Contains factories that create Receive/SendReply and Send/ReceiveReply activity pairs.
System.ServiceModel.Activities.Tracking: Contains classes used to create tracking records for a workflow service instance. Tracking records are created by the workflow runtime during the execution of a workflow instance, and are sent to registered tracking participants.
System.ServiceModel.Activities.Tracking.Configuration: Contains classes used to configure workflow tracking. These classes enable you to specify the tracking information you want your workflow to generate.
System.ServiceModel.Channels: Contains the types required to construct and modify the messages used by clients and services to communicate with each other, the types of channels used to exchange messages, the channel factories and channel listeners used to construct those channels, and the binding elements used to configure them.
System.ServiceModel.ComIntegration: Contains the types necessary to integrate Windows Communication Foundation (WCF) service and client applications with COM components.
System.ServiceModel.Configuration: Contains types used by the Windows Communication Foundation (WCF) infrastructure to convert XML into Common Language Runtime (CLR) types.
System.ServiceModel.Description: Contains the types requires to construct and modify descriptions of services, contract, and endpoints that are used to build service runtimes and to export metadata.
System.ServiceModel.Diagnostics: Contains an enumeration that is used to configure performance counters for diagnostic purposes.
System.ServiceModel.Discovery: Contains the types required for the creation and use of discoverable services.
System.ServiceModel.Discovery.Configuration: Contains classes that enable you to configure discovery settings in a configuration file.
System.ServiceModel.Discovery.Version11: Contains the classes required to create and use discoverable services. These classes implement the WS-Discovery version 1.1 protocol.
System.ServiceModel.Discovery.VersionApril2005: Contains the classes required to create and use discoverable services. These classes implement the April 2005 version of the WS-Discovery protocol.
System.ServiceModel.Discovery.VersionCD1: Contains the classes required to create and use discoverable services. These classes implement the Committee Draft 1 version of the WS-Discovery protocol.
System.ServiceModel.Dispatcher: Contains the types necessary to modify the run-time execution behavior of service and client applications.
System.ServiceModel.MsmqIntegration: Contains classes for Microsoft Message Queuing Service (MSMQ) integration, which enables communication between MSMQ applications and Windows Communication Foundation (WCF) applications.
System.ServiceModel.PeerResolvers: Contains classes that enable developers to customize and extend the Peer Name Resolution Protocol (PNRP) service.
System.ServiceModel.Persistence: Contains classes that allow workflow services (WCF services implemented as workflows) to be persisted into the persistence store.
System.ServiceModel.Routing: Contains classes that are used by the Windows Communication Foundation (WCF) infrastructure to implement the routing of messages between WCF endpoints.
System.ServiceModel.Routing.Configuration: Contains configuration classes that are used by the Windows Communication Foundation (WCF) infrastructure to convert XML into common language runtime (CLR) types.
System.ServiceModel.Security: Contains classes that support general Windows Communication Foundation (WCF) security.
System.ServiceModel.Security.Tokens: Contains types that represent security tokens and certificates for Windows Communication Foundation (WCF) security.
System.ServiceModel.ServiceMoniker40
System.ServiceModel.Syndication: Contains the types that make up the syndication object model.
System.ServiceModel.Web: Contains types that make up the Web HTTP programming model.
System.ServiceModel.XamlIntegration: Provides utility classes to enable the serialization of entities to XAML.
System.ServiceProcess: Provides classes that enable you to implement, install, and control Windows service applications. Services are long-running executables that run without a user interface. Implementing a service involves inheriting from the ServiceBase class and defining specific behavior to process when start, stop, pause, and continue commands are passed in, as well as custom behavior and actions to take when the system shuts down.
System.ServiceProcess.Design: Contains classes that can be used to extend design-time support for Windows service applications.
System.Speech.AudioFormat
System.Speech.Recognition: Contains Windows Desktop Speech technology types for implementing speech recognition.
System.Speech.Recognition.SrgsGrammar
System.Speech.Synthesis
System.Speech.Synthesis.TtsEngine: Contains types that support the creation of custom engines based on the Speech Synthesis Markup Language (SSML) for rendering Text-to-Speech (TTS).
System.Text: Contains classes representing ASCII, Unicode, UTF-7, and UTF-8 character encodings; abstract base classes for converting blocks of characters to and from blocks of bytes; and a helper class that manipulates and formats String objects without creating intermediate instances of String.
System.Text.RegularExpressions: Contains classes that provide access to the .NET Framework regular expression engine. The namespace provides regular expression functionality that can be used from any platform or language that runs within the.NET Framework.
System.Threading: Provides classes and interfaces that enable multithreaded programming. In addition to classes for synchronizing thread activities and access to data (Mutex, Monitor,Interlocked, AutoResetEvent, and so on), this namespace includes a ThreadPool class that lets you use a pool of system-supplied threads, and a Timer class that executes callback methods on thread pool threads.
System.Threading.Tasks: Provides types that simplify the work of writing concurrent and asynchronous code.
System.Timers: Provides the Timer component, which enables you to raise an event on a specified interval.
System.Transactions: Contains classes that enable your code to participate in transactions. The classes support transactions with multiple, distributed participants, multiple phase notifications, and durable enlistments.
System.Transactions.Configuration: Contains classes that describe configuration options used by System.Transactions classes.
System.Web: Provides classes and interfaces that enable browser-server communication. This namespace includes the HttpRequest class, which provides extensive information about the current HTTP request, the HttpResponse class, which manages HTTP output to the client, and the HttpServerUtility class, which provides access to server-side utilities and processes. System.Web also includes classes for cookie manipulation, file transfer, exception information, and output cache control.
System.Web.ApplicationServices: Provides classes that provide access to ASP.NET forms authentication, roles, and profiles application services as Windows Communication Foundation (WCF) services.
System.Web.Caching: Provides classes for caching frequently used data on the server. This includes the Cache class, a dictionary that lets you store arbitrary data objects, such as hash tables and data sets. It also provides expiration functionality for those objects, and methods that let you add and remove the objects. You can also add the objects with a dependency upon other files or cache entries, and perform a callback to notify your application when an object is removed from the cache.
System.Web.ClientServices: Contains classes that support access to the ASP.NET login, roles, and profiles services from Windows-based applications.
System.Web.ClientServices.Providers: Contains client service providers and other classes that support access to the ASP.NET login, roles, and profiles services from Windows-based applications.
System.Web.Compilation: Contains classes for generating and compiling custom file types within the ASP.NET build environment.
System.Web.Configuration: Contains classes that are used to set up ASP.NET configuration.
System.Web.DynamicData: Contains classes that provide the core functionality for ASP.NET dynamic data and extensibility features that let you customize dynamic data behavior.
System.Web.DynamicData.Design: Contains classes that provide design-time support for the classes in the System.Web.DynamicData namespace.
System.Web.DynamicData.ModelProviders: Contains classes that define the core functionality for ASP.NET Dynamic Data providers.
System.Web.Handlers: Contains HTTP handler classes that process HTTP requests to a Web server.
System.Web.Hosting: Provides the functionality for hosting ASP.NET applications from managed applications outside of Microsoft Internet Information Services (IIS).
System.Web.Management: Contains classes and interfaces for managing and monitoring the health of Web applications.
System.Web.Mobile: Contains the core capabilities, including authentication and error-handling, required for building ASP.NET mobile Web applications.
System.Web.Profile: Contains classes that are used to implement the ASP.NET user profile in Web server applications.
System.Web.Query.Dynamic: Contains classes that are used to parse expressions from a LinqDataSource control into a Language-Integrated Query (LINQ).
System.Web.RegularExpressions: Provides regular expressions used to parse ASP.NET files. All members of the System.Web.RegularExpressions namespace are descendants of the Regex class.
System.Web.Routing: Provides classes that are used with URL routing, which enables you to use URLs that do not map to a physical file.
System.Web.Script: Contains classes that provide script resource information.
System.Web.Script.Serialization: Contains classes that provide JavaScript Object Notation (JSON) serialization and deserialization for managed types. It also provides extensibility features to customize serialization behavior.
System.Web.Script.Services: Provides attributes to customize Web service support for using AJAX functionality in ASP.NET.
System.Web.Security: Contains classes that are used to implement ASP.NET security in Web server applications.
System.Web.Services: Consists of the classes that enable you to create XML Web services using ASP.NET and XML Web service clients. XML Web services are applications that provide the ability to exchange messages in a loosely coupled environment using standard protocols such as HTTP, XML, XSD, SOAP, and WSDL. XML Web services enable the building of modular applications within and across companies in heterogeneous environments, making them interoperable with a broad variety of implementations, platforms, and devices.
System.Web.Services.Configuration: Consists of the classes that configure how XML Web services created using ASP.NET run.
System.Web.Services.Description: Consists of the classes that enable you to publicly describe an XML Web service by using the Web Services Description Language (WSDL). Each class in this namespace corresponds to a specific element in the WSDL specification, and the class hierarchy corresponds to the XML structure of a valid WSDL document.
System.Web.Services.Discovery: Consists of the classes that enable XML Web service clients to locate the available XML Web services on a Web server through a process called XML Web Services Discovery.
System.Web.Services.Protocols: Consists of the classes that define the protocols used to transmit data across the wire during the communication between XML Web service clients and XML Web services created using ASP.NET.
System.Web.SessionState: Supplies classes and interfaces that enable storage of data specific to a single client within a Web application on the server. The session state data is used to give the client the appearance of a persistent connection with the application. State information can be stored within local process memory or, for Web farm configurations, out-of-process using either the ASP.NET State service or a SQL Server database.
System.Web.UI: Provides classes and interfaces that enable you to create ASP.NET server controls and ASP.NET Web pages for the user interface of your ASP.NET Web applications. This namespace includes the Control class, which provides all HTML server controls, Web server controls, and user controls with a common set of functionality. It also includes the Page control, which is generated automatically whenever a request is made for an .aspx file in an ASP.NET Web application. Also included are classes which provide the server controls with data-binding functionality, the ability to save the view state of a given control or page, and parsing functionality.
System.Web.UI.Adapters: Contains the base classes for control adapters and page adapters, which you can use to override life-cycle states of pages and controls to modify their default markup or behavior for new markup standards or for specific browsers.
System.Web.UI.DataVisualization.Charting: Contains types for the Chart Web server control.
System.Web.UI.Design: Contains classes that can be used to extend design-time support for ASP.NET Web pages and for Web server controls.
System.Web.UI.Design.MobileControls: Obsolete. Contains classes that provide design-time support for the classes in the System.Web.UI.MobileControls namespace. The classes in this namespace are obsolete; use the classes in System.Web.UI.Design.WebControls instead.
System.Web.UI.Design.MobileControls.Converters: Contains classes that provide design-time support for data type converters in mobile controls.
System.Web.UI.Design.WebControls: Contains classes that can be used to extend design-time support for Web server controls.
System.Web.UI.Design.WebControls.WebParts: Contains classes that provide design-time support for controls derived from classes in the System.Web.UI.WebControls.WebParts namespace.
System.Web.UI.HtmlControls: Consists of a collection of classes that enable you to create HTML server controls on a Web Forms page. HTML server controls run on the server and map directly to standard HTML tags supported by most browsers. This enables you to programmatically control the HTML elements on a Web Forms page.
System.Web.UI.MobileControls: Obsolete. Contains a set of ASP.NET server controls that can intelligently render your application for different mobile devices. The classes in this namespace are obsolete; use the controls in System.Web.UI.WebControls instead.
System.Web.UI.MobileControls.Adapters: Contains classes you can use to override life-cycle stages of a mobile control to modify its default HTML, CHTML, or WML markup or behavior for new markup standards or for specific browsers and mobile devices.
System.Web.UI.MobileControls.Adapters.XhtmlAdapters: Contains classes you can use to override life-cycle stages of a mobile control to modify its default XHTML markup or behavior for new markup standards or for specific browsers and mobile devices.
System.Web.UI.WebControls: Contains classes that enable you to create Web server controls on a Web page. Web server controls run on the server and include form controls such as buttons and text boxes. They also include special-purpose controls such as a calendar. Because Web server controls run on the server, you can programmatically control these elements. Web server controls are more abstract than HTML server controls. Their object model does not necessarily reflect HTML syntax.
System.Web.UI.WebControls.Adapters: Contains classes you can use to override life-cycle stages of a Web control to modify a control's default markup or behavior for new markup standards or for specific browsers.
System.Web.UI.WebControls.Expressions: Provides classes for filtering data in a Web page using the QueryExtender control.
System.Web.UI.WebControls.WebParts: Contains an integrated set of classes and interfaces for creating Web pages whose appearance and behavior can be modified (personalized) by end users. The user-defined settings for each page are saved for future browser sessions.
System.Web.Util: Contains classes that enable callback methods to be run under the scope of a transaction and that enable work to be posted to separate threads.
System.Windows: Provides several important Windows Presentation Foundation (WPF) base element classes, various classes that support the WPF property system and event logic, and other types that are more broadly consumed by the WPF core and framework.
System.Windows.Annotations: Contains types that support user-created annotations on content displayed in Windows Presentation Foundation (WPF) document viewing controls.
System.Windows.Annotations.Storage: Contains classes that define the storage architecture and media to save and retrieve user-created annotations.
System.Windows.Automation: Contains classes that provide support for Windows Presentation Foundation (WPF) user interface automation clients.
System.Windows.Automation.Peers: Defines the AutomationPeer base class and a set of types derived from it that correspond to.NET Framework controls.
System.Windows.Automation.Provider: Contains types for creating UI Automation providers for Windows Presentation Foundation (WPF).
System.Windows.Automation.Text: Contains enumerations that specify text formatting and related behavior for Windows Presentation Foundation (WPF) UI automation.
System.Windows.Baml2006: Contains reader and writer classes that can consume XAML in BAML form.
System.Windows.Controls: Contains classes to create controls that enable a user to interact with an application.
System.Windows.Controls.Primitives: Contains base classes and controls that are intended to be used as part of other, more complex controls.
System.Windows.Converters: Contains classes that support type conversion during serialization in Windows Presentation Foundation (WPF).
System.Windows.Data: Contains classes used for binding properties to data sources, data source provider classes, and data-specific implementations of collections and views.
System.Windows.Documents: Contains classes that support FixedDocument, FlowDocument, and XML Paper Specification (XPS) document creation.
System.Windows.Documents.DocumentStructures: Contains classes that describe the structure of an XpsDocument in terms of sections, paragraphs, figures, bulleted or numbered lists, and tables.
System.Windows.Documents.Serialization: Contains classes that support the creation and use of run-time accessible plug-in serializers which read and write documents in different data formats.
System.Windows.Forms: Contains classes for creating Windows-based applications that take full advantage of the rich user interface features available in the Windows operating system.
System.Windows.Forms.DataVisualization.Charting: Contains types for the Chart Windows Forms control.
System.Windows.Forms.Design: Contains classes that support design-time configuration and behavior for Windows Forms components. These classes consist of: Designer classes that provide support for Windows Forms components, a set of design time services, UITypeEditor classes for configuring certain types of properties, and classes for importing ActiveX controls.
System.Windows.Forms.Design.Behavior: Contains classes for creating custom user interface behavior for components at design time.
System.Windows.Forms.Integration: Contains classes that support interoperation of Windows Forms and Windows Presentation Foundation (WPF) controls.
System.Windows.Forms.Layout: Contains classes that support design-time and run-time layout behaviors.
System.Windows.Forms.VisualStyles: Contains classes for rendering controls and other Windows user interface elements with visual styles.
System.Windows.Ink: Provides classes to interact with and manipulate ink on the Windows Presentation Foundation (WPF) platform.
System.Windows.Input: Contains classes that support the Windows Presentation Foundation (WPF) input system.
System.Windows.Input.Manipulations: Provides functionality for monitoring and responding to a collection of manipulators as a single composite, enabling an application to track the changes to the composite instead of the individual components.
System.Windows.Input.StylusPlugIns: Provides classes that support manipulating data from a tablet pen on the Windows Presentation Foundation (WPF) platform.
System.Windows.Interop: Contains classes that support interoperation between Windows Presentation Foundation (WPF) and other technologies.
System.Windows.Markup: Contains classes to support serialization and Extensible Application Markup Language (XAML) in Windows Presentation Foundation (WPF) applications.
System.Windows.Markup.Localizer: Contains types that assist in the localization of binary XAML (BAML) sources.
System.Windows.Markup.Primitives: Contains classes that support Extensible Application Markup Language (XAML) in Windows Presentation Foundation (WPF) applications.
System.Windows.Media: Contains classes that enable integration of rich media, including drawings, text, and audio/video content, within Windows Presentation Foundation (WPF) applications.
System.Windows.Media.Animation: Contains classes that provide property animation functionality in Windows Presentation Foundation (WPF) applications.
System.Windows.Media.Converters: Contains types used by the MarkupWriter for serialization of Extensible Application Markup Language (XAML).
System.Windows.Media.Effects: Contains types that can be used to apply visual effects to bitmap images.
System.Windows.Media.Imaging: Contains types used to encode and decode bitmap images.
System.Windows.Media.Media3D: Contains types that support 3-D presentation in Windows Presentation Foundation (WPF) applications.
System.Windows.Media.Media3D.Converters: Defines types used by the MarkupWriter class for serialization of Extensible Markup Language (XAML).
System.Windows.Media.TextFormatting: Contains classes that control formatting of text, typically at a lower level than control-based text presentation or the text object model.
System.Windows.Navigation: Contains types used for navigation, including navigating between windows, and navigation journaling.
System.Windows.Resources: Contains low-level classes that support the Windows Presentation Foundation (WPF) resource model and the Resources build action.
System.Windows.Shapes: Contains a library of shapes that can be used in Extensible Application Markup Language (XAML) or code.
System.Windows.Shell: Contains types that provide managed code access to the enhanced functionality of the Windows 7 taskbar.
System.Windows.Threading: Contains classes that support the Windows Presentation Foundation (WPF) threading system.
System.Windows.Xps: Contains classes that write XML Paper Specification (XPS) documents to a data store or print queue.
System.Windows.Xps.Packaging: Contains classes that enable applications to read and write the components of an XPS document.
System.Windows.Xps.Serialization: Contains classes that support serialization of XPS documents.
System.Workflow.Activities: Contains classes that define activities that can be added to workflows to create and run an executable representation of a work process.
System.Workflow.Activities.Configuration: Contains classes that represent sections of a configuration file.
System.Workflow.Activities.Rules: Contains classes that define the conditions and actions that form a rule.
System.Workflow.Activities.Rules.Design: Contains classes that manage the Rule Set Editor and the Rule Condition Editor dialog boxes.
System.Workflow.ComponentModel: Contains the types that are used to create activities and workflows.
System.Workflow.ComponentModel.Compiler: Provides the infrastructure for validating and compiling activities and workflows.
System.Workflow.ComponentModel.Design: Contains classes that developers can use to build custom design-time behavior for workflows and activities.
System.Workflow.ComponentModel.Serialization: Provides the infrastructure for managing the serialization of activities and workflows to and from Extensible Application Markup Language (XAML) and CodeDOM.
System.Workflow.Runtime: Contains types that can be used to control the workflow runtime engine and the execution of a workflow instance.
System.Workflow.Runtime.Configuration: Contains classes that are used to configure the workflow runtime engine.
System.Workflow.Runtime.DebugEngine: Contains types for use in debugging workflow instances.
System.Workflow.Runtime.Hosting: Contains classes that are related to services provided to the workflow runtime engine by the host application.
System.Workflow.Runtime.Tracking: Contains types related to tracking services.
System.Xaml: Provides types that relate to XAML parsers and processors.
System.Xaml.Hosting: Contains classes related to XAML hosting.
System.Xaml.Hosting.Configuration: Contains classes related to XAML hosting configuration.
System.Xaml.Permissions: Contains types that specify permissions for certain XAML loading scenarios, such as loading under partial trust.
System.Xaml.Schema: Contains types that support the XAML type system for the XAML information set.
System.Xml: Provides standards-based support for processing XML.
System.Xml.Linq: Contains the types for LINQ to XML, which is an in-memory XML programming interface that enables you to modify XML documents efficiently and easily.
System.Xml.Resolvers: Provides support for prepopulating the cache with DTDs or XML streams.
System.Xml.Schema: Contains the XML classes that provide standards-based support for XML Schema definition language (XSD) schemas.
System.Xml.Serialization: Contains classes that are used to serialize objects into XML format documents or streams.
System.Xml.Serialization.Advanced: Contains classes that enable you to customize the code generated from a Web Services Description Language (WSDL) document.
System.Xml.Serialization.Configuration: Contains classes used to read the values found in application configuration files in the system.xml.serialization element section.
System.Xml.XPath: Contains the classes that define a cursor model for navigating and editing XML information items as instances of the XQuery 1.0 and XPath 2.0 Data Model.
System.Xml.Xsl: Provides support for Extensible Stylesheet Transformation (XSLT) transforms. This namespace supports the W3C XSL Transformations (XSLT) Version 1.0 Recommendation.
System.Xml.Xsl.Runtime: Provides internal support for the classes in the System.Xml.Xsl namespace. The classes in this namespace support the .NET Framework infrastructure and are not intended to be used directly from your code.
UIAutomationClientsideProviders: Contains a single class that maps client automation providers.

Deprecated and Internal Namespaces

Minimal documentation is provided for the following namespaces, either because they have been deprecated or because they are for internal use only.

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.net Framework Class Library(FCL)

Namespaces

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