ButtonField 对象在 GridView 控件中如合使用

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下面的代码示例演示如何使用 ButtonField 对象显示 GridView 控件中的一列命令按钮。

Visual Basic

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<%@ Page language="VB" %>

<script runat="server">

    Sub CustomersGridView_RowCommand()Sub CustomersGridView_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs)
  
        ' 如果多個使用多個buttonfield,利用CommandName來確定那個buttonfield被點擊.
        If e.CommandName = "Select" Then
    
            '轉換列的索引放進CommandArgument
            
            Dim index As Integer = Convert.ToInt32(e.CommandArgument)
    
            ' 從appropriate獲得所選作者的姓
            ' cell in the GridView control.
            Dim selectedRow As GridViewRow = CustomersGridView.Rows(index)
            Dim contactCell As TableCell = selectedRow.Cells(1)
            Dim contact As String = contactCell.Text
    
            ' 顯示所選作者.
            Message.Text = "You selected " & contact & "."
      
        End If
    
    End Sub
    
</script>

<html>
  <body>
    <form id="Form1" runat="server">
        
      <h3>ButtonField Example</h3>
      
      <asp:label id="Message"
        forecolor="Red"
        runat="server"/>
                    
      <!-- Populate the Columns collection declaratively. -->
      <asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSqlDataSource" 
        autogeneratecolumns="false"
        onrowcommand="CustomersGridView_RowCommand"
        runat="server">
                
        <columns>
                
          <asp:buttonfield buttontype="Button" 
            commandname="Select"
            headertext="Select Customer" 
            text="Select"/>
          <asp:boundfield datafield="CompanyName" 
            headertext="Company Name"/>
          <asp:boundfield datafield="ContactName" 
            headertext="Contact Name"/>
                
        </columns>
                
      </asp:gridview>
            
        <!-- This example uses Microsoft SQL Server and connects -->
        <!-- to the Northwind sample database.                   -->
        <asp:sqldatasource id="CustomersSqlDataSource"  
          selectcommand="Select [CustomerID], [CompanyName], [ContactName], [ContactTitle] From [Customers]"
          connectionstring="<%___FCKpd___0nbsp;ConnectionStrings:NorthWindConnection%>"
          runat="server">
        </asp:sqldatasource>
            
    </form>
  </body>
</html>