常用程式碼片段

weixin_33941350發表於2015-09-04

實現IDisposable的程式碼片段

 1        ~DemoType()
 2         {
 3             this.Dispose();
 4         }
 5 
 6         #region IDisposable Members
 7 
 8         /// <summary>
 9         /// Internal variable which checks if Dispose has already been called
10         /// </summary>
11         protected Boolean disposed;
12 
13         /// <summary>
14         /// Releases unmanaged and - optionally - managed resources
15         /// </summary>
16         /// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
17         protected void Dispose(Boolean disposing)
18         {
19             if (disposed)
20             {
21                 return;
22             }
23 
24             if (disposing)
25             {
26                 //TODO: Managed cleanup code here, while managed refs still valid
27             }
28             //TODO: Unmanaged cleanup code here
29 
30             disposed = true;
31         }
32 
33         /// <summary>
34         /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
35         /// </summary>
36         public void Dispose()
37         {
38             // Call the private Dispose(bool) helper and indicate
39             // that we are explicitly disposing
40             this.Dispose(true);
41 
42             // Tell the garbage collector that the object doesn't require any
43             // cleanup when collected since Dispose was called explicitly.
44             GC.SuppressFinalize(this);
45         }
46 
47         #endregion

CodeSnippet

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <CodeSnippets xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
 3     <CodeSnippet Format="1.0.0">
 4         <Header>
 5       <Title>Implement IDisposable</Title>
 6       <Author>Surviveplus.net</Author>
 7       <Description>Define logic of IDisposable implementation.</Description>
 8       <Shortcut>dispoase</Shortcut>
 9       <SnippetTypes>
10                 <SnippetType>Expansion</SnippetType>
11             </SnippetTypes>
12         </Header>
13         <Snippet>
14             <Declarations>
15                 <Literal Editable="false">
16                     <ID>classname</ID>
17                     <ToolTip>Class Name</ToolTip>
18                     <Function>ClassName()</Function>
19                     <Default>ClassNamePlaceholder</Default>
20                 </Literal>
21             </Declarations>
22             <Code Language="csharp">
23         <![CDATA[
24         #region IDisposable Members
25 
26         /// <summary>
27         /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
28         /// </summary>
29         public void Dispose() {
30             this.Dispose( true );
31             GC.SuppressFinalize( this );
32         } // end sub
33 
34         /// <summary>
35         /// Destruct instance of the class.
36         /// </summary>
37         ~$classname$() {
38             this.Dispose( false );
39         }
40 
41         /// <summary>
42         /// Backing field to track whether Dispose has been called.
43         /// </summary>
44         private bool disposedValue = false;
45 
46         /// <summary>
47         /// Dispose managed and unmanaged resources of this instance.
48         /// </summary>
49         /// <param name="disposing">If disposing equals true, managed and unmanaged resources can be disposed. If disposing equals false, only unmanaged resources can be disposed. </param>
50         protected virtual void Dispose( bool disposing ) {
51 
52             if ( this.disposedValue == false ) {
53                 if ( disposing ) {
54                     // TODO: Dispose managed resources.
55                 } // end if
56 
57                 // TODO: Dispose unmanaged resources.
58             } // end if
59 
60             this.disposedValue = true;
61         } // end sub
62 
63         #endregion]]>
64             </Code>
65         </Snippet>
66     </CodeSnippet>
67 </CodeSnippets>
dispoase.snippet

把這段XML文件儲存為dispoase.snippet，儲存到你的VS下面的某個目錄下（我的是（C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC#\Snippets\2052\Visual C#））

重啟VS，可見效果如圖所示。（這是從Surviveplus Code Snippets發現的一個snippet，非常好用）

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