ASP.NET中自定義DataGrid分頁設定的實現

先定義ASPX頁面，注意AllowCustomPaging要設為"False"：

＜body＞
＜form. id="DictList" method="post" runat="server"＞
＜TABLE style="BORDER-COLLAPSE: collapse" cellSpacing="0" width="100%" border="1"＞
＜TR＞
＜td bgColor="#c0c000"＞資訊：＜FONT face="Arial" color="#ffffff"＞資料維護＜/FONT＞
＜/td＞
＜/TR＞
＜tr＞
＜td＞＜FONT face="宋體"＞＜/FONT＞＜/td＞
＜/tr＞
＜tr＞
＜td＞＜asp:datagrid id="MyDataGrid" runat="server" Width="100%" PageSize="20" AllowPaging="True" AutoGenerateColumns="False" DataKeyField="FDictid"＞
＜SelectedItemStyle. BackColor="#FFC080"＞＜/SelectedItemStyle＞
＜HeaderStyle. BackColor="#C0C000"＞＜/HeaderStyle＞
＜Columns＞
＜asp:ButtonColumn Text="選擇" HeaderText="選擇" CommandName="Select"＞
＜HeaderStyle. Font-Bold="True" HorizontalAlign="Center" Width="8%"＞＜/HeaderStyle＞
＜ItemStyle. Font-Bold="True" HorizontalAlign="Center"＞＜/ItemStyle＞
＜/asp:ButtonColumn＞
＜asp:BoundColumn DataField="FDictID" SortExpression="FDictID asc" HeaderText="標識號"＞
＜HeaderStyle. Width="15%"＞＜/HeaderStyle＞
＜/asp:BoundColumn＞
＜asp:BoundColumn DataField="FNameCn" SortExpression="FNameCn asc" HeaderText="名稱"＞
＜HeaderStyle. Width="15%"＞＜/HeaderStyle＞
＜/asp:BoundColumn＞
＜asp:BoundColumn DataField="FNameEn" SortExpression="FNameEn asc" HeaderText="英文名稱"＞
＜HeaderStyle. Width="15%"＞＜/HeaderStyle＞
＜/asp:BoundColumn＞
＜asp:BoundColumn DataField="FNote" SortExpression="FNote asc" HeaderText="描敘"＞
＜HeaderStyle. Width="47%"＞＜/HeaderStyle＞
＜/asp:BoundColumn＞
＜/Columns＞
＜PagerStyle. Visible="False"＞＜/PagerStyle＞
＜/asp:datagrid＞＜/td＞
＜/tr＞
＜/TABLE＞
＜TABLE style="BORDER-COLLAPSE: collapse" cellSpacing="0" width="100%" bgColor="#ff9966" border="1"＞
＜TR＞
＜td align="right"＞＜asp:linkbutton id="btnFirst" runat="server" CommandArgument="fist"＞首頁＜/asp:linkbutton＞  
＜asp:linkbutton id="btnPrev" runat="server" Width="36px" CommandArgument="prev"＞上一頁＜/asp:linkbutton＞  
＜asp:linkbutton id="btnNext" runat="server" CommandArgument="next"＞下一頁＜/asp:linkbutton＞  
＜asp:linkbutton id="btnLast" runat="server" CommandArgument="last"＞末頁＜/asp:linkbutton＞  
＜asp:label id="lblCurrentIndex" runat="server"＞＜/asp:label＞/＜asp:label id="lblPageCount" runat="server"＞＜/asp:label＞  
跳轉到＜asp:TextBox id="txtGoPage" runat="server" Width="30px" CssClass="textbox"＞＜/asp:TextBox＞
＜asp:Button id="btnGo" runat="server" Text="GO" CssClass="button" Width="29px"＞＜/asp:Button＞＜/td＞
＜/TR＞
＜/TABLE＞
＜/form＞







codebehind主要功能部分程式碼：



private void Page_Load(object sender, System.EventArgs e)
{
// 在此處放置使用者程式碼以初始化頁面
myConnection = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnString"]);

if (!IsPostBack)
BindGrid();
}



public void BindGrid()
{
string strSql ="SELECT * FROM t_dict ";
SqlDataAdapter myCommand = new SqlDataAdapter(strSql, myConnection);
DataSet ds = new DataSet();
myCommand.Fill(ds, "t_dict");
MyDataGrid.DataSource=ds.Tables["t_dict"].DefaultView;
MyDataGrid.DataBind();
ShowStatsPage();
}

private void PagerButtonClick(object sender, System.EventArgs e)
{
//獲得LinkButton的引數值
String arg = ((LinkButton)sender).CommandArgument;

switch(arg)
{
case ("next"):
if (MyDataGrid.CurrentPageIndex ＜ (MyDataGrid.PageCount - 1))
MyDataGrid.CurrentPageIndex ++;
break;
case ("prev"):
if (MyDataGrid.CurrentPageIndex ＞ 0)
MyDataGrid.CurrentPageIndex --;
break;
case ("fist"):
MyDataGrid.CurrentPageIndex=0;
break;
case ("last"):
MyDataGrid.CurrentPageIndex = (MyDataGrid.PageCount - 1);
break;
default:
//本頁值
MyDataGrid.CurrentPageIndex = Convert.ToInt32(arg);
break;
}
BindGrid();
}

void ShowStatsPage()
{
//顯示頁面資訊
lblCurrentIndex.Text = "[＜font color="blue"＞當前為第：" + ((int)MyDataGrid.CurrentPageIndex+1) + "頁＜/font＞]";
lblPageCount.Text = "[＜font color="blue"＞共：" + MyDataGrid.PageCount + "頁＜/font＞]";
}



private void MyDataGrid_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
//處理按下數字的方法
MyDataGrid.CurrentPageIndex = e.NewPageIndex;
BindGrid();
}



private void btnGo_Click(object sender, System.EventArgs e)
{
//頁面直接跳轉的程式碼
if(txtGoPage.Text.Trim()!="")
{
int PageI=Int32.Parse(txtGoPage.Text.Trim())-1;
if (PageI ＞=0 && PageI ＜ (MyDataGrid.PageCount))
MyDataGrid.CurrentPageIndex = PageI ;
}
BindGrid();
}