共用方式為


ButtonField.DataTextField 屬性

定義

取得或設定資料欄位的名稱,其值為繫結至由 Text 物件所呈現之 Button 控制項的 ButtonField 屬性。

public:
 virtual property System::String ^ DataTextField { System::String ^ get(); void set(System::String ^ value); };
[System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public virtual string DataTextField { get; set; }
[System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public virtual string DataTextField { get; set; }
[<System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]
member this.DataTextField : string with get, set
[<System.ComponentModel.TypeConverter("System.Web.UI.Design.DataSourceViewSchemaConverter, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]
member this.DataTextField : string with get, set
Public Overridable Property DataTextField As String

屬性值

String

要繫結至 ButtonField 的欄位的名稱。 預設值是空字串 (""),表示未設定 DataTextField 屬性。

屬性

範例

下列程式碼範例示範如何使用 DataTextField 屬性來指定要在 控制項資料行 GridView 中顯示的 ButtonField 欄位。


<%@ Page language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  void AuthorsGridView_RowCommand(Object sender, GridViewCommandEventArgs e)
  {
  
    // If multiple ButtonField column fields are used, use the
    // CommandName property to determine which button was clicked.
    if(e.CommandName=="Select")
    {
    
      // Convert the row index stored in the CommandArgument
      // property to an Integer.
      int index = Convert.ToInt32(e.CommandArgument);    
    
      // Get the last name of the selected author from the appropriate
      // cell in the GridView control.
      GridViewRow selectedRow = AuthorsGridView.Rows[index];
      TableCell lastNameCell = selectedRow.Cells[1];
      string lastName = lastNameCell.Text;  
    
      // Display the selected author.
      Message.Text = "You selected " + lastName + ".";
      
    }
    
  }
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ButtonField DataTextField Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>ButtonField DataTextField Example</h3>
      
      <asp:label id="Message"
        forecolor="Red"
        runat="server"
        AssociatedControlID="AuthorsGridView"/>
                    
      <!-- Set the DataTextField property of the ButtonField -->
      <!-- declaratively. Set the DataTextFormatString       -->
      <!-- property to apply special formatting to the text. -->
      <asp:gridview id="AuthorsGridView" 
        datasourceid="AuthorsSqlDataSource" 
        autogeneratecolumns="false"
        onrowcommand="AuthorsGridView_RowCommand" 
        runat="server">
                
        <columns>
                
          <asp:buttonfield buttontype="Link" 
            commandname="Select"
            headertext="Select Author"
            datatextfield="au_lname"
            datatextformatstring="[{0}]"    
            text="Select"/>
          <asp:boundfield datafield="au_fname" 
            headertext="First Name"/>
                
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Pubs sample database.                        -->
      <asp:sqldatasource id="AuthorsSqlDataSource"  
        selectcommand="SELECT [au_lname], [au_fname] FROM [authors]"
        connectionstring="server=localhost;database=pubs;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

<%@ Page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  Sub AuthorsGridView_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs)
  
    ' If multiple ButtonField column fields are used, use the
    ' CommandName property to determine which button was clicked.
    If e.CommandName = "Select" Then
    
      ' Convert the row index stored in the CommandArgument
      ' property to an Integer.
      Dim index As Integer = Convert.ToInt32(e.CommandArgument)
    
      ' Get the last name of the selected author from the appropriate
      ' cell in the GridView control.
      Dim selectedRow As GridViewRow = AuthorsGridView.Rows(index)
      Dim lastNameCell As TableCell = selectedRow.Cells(1)
      Dim lastName As String = lastNameCell.Text
    
      ' Display the selected author.
      Message.Text = "You selected " & lastName & "."
      
    End If
    
  End Sub
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ButtonField DataTextField Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>ButtonField DataTextField Example</h3>
      
      <asp:label id="Message"
        forecolor="Red"
        runat="server"
        AssociatedControlID="AuthorsGridView"/>
                    
      <!-- Set the DataTextField property of the ButtonField -->
      <!-- declaratively. Set the DataTextFormatString       -->
      <!-- property to apply special formatting to the text. -->
      <asp:gridview id="AuthorsGridView" 
        datasourceid="AuthorsSqlDataSource" 
        autogeneratecolumns="false"
        onrowcommand="AuthorsGridView_RowCommand"
        runat="server">
                
        <columns>
                
          <asp:buttonfield buttontype="Link" 
            commandname="Select"
            headertext="Select Author"
            datatextfield="au_lname"
            datatextformatstring="[{0}]"    
            text="Select"/>
          <asp:boundfield datafield="au_fname" 
            headertext="First Name"/>
                
        </columns>
                
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects -->
      <!-- to the Pubs sample database.                        -->
      <asp:sqldatasource id="AuthorsSqlDataSource"  
        selectcommand="SELECT [au_lname], [au_fname] FROM [authors]"
        connectionstring="server=localhost;database=pubs;integrated security=SSPI"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

備註

ButtonType當 物件的 屬性 ButtonField 設定為 ButtonLink 值時,請使用 DataTextField 屬性來指定要系結至 ButtonField 物件的功能變數名稱。 然後,欄位的值會顯示為 物件中按鈕的 ButtonField 文字。 您可以選擇性地設定 DataTextFormatString 屬性來格式化顯示的文字。

您可以使用 Text 屬性來顯示物件中按鈕文字的靜態文字,而不是使用 DataTextField 屬性將物件系結 ButtonField 至資料來源中的 ButtonField 欄位。 Text使用 屬性時,每個按鈕都會共用相同的標題。

注意

DataTextField如果 同時設定 和 Text 屬性,則 DataTextField 屬性會優先使用。

此屬性的值會儲存在檢視狀態中。

適用於

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