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CommandField.ShowEditButton 属性

定义

获取或设置一个值,该值指示是否在 CommandField 字段中显示“编辑”按钮。

public:
 virtual property bool ShowEditButton { bool get(); void set(bool value); };
public virtual bool ShowEditButton { get; set; }
member this.ShowEditButton : bool with get, set
Public Overridable Property ShowEditButton As Boolean

属性值

如果在 CommandField 中显示“编辑”按钮,则为 true;否则为 false。 默认值为 false

示例

下面的代码示例演示如何使用 ShowEditButton 属性显示控件中每条记录的 GridView “编辑”按钮。


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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>CommandField Example</title>
</head>
<body>
    <form id="form1" runat="server">
      
      <h3>CommandField Example</h3>

      <asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSqlDataSource" 
        autogeneratecolumns="false"
        datakeynames="CustomerID"  
        runat="server">
        
        <columns>
          <asp:commandfield showeditbutton="true"
            buttontype="Image"
            editimageurl="~\Images\EditButton.jpg"
            cancelimageurl="~\Images\CancelButton.jpg"
            updateimageurl="~\Images\UpdateButton.jpg"
            headertext="Edit Controls"/>
          <asp:boundfield datafield="CustomerID"
            headertext="Customer ID" />
          <asp:boundfield datafield="CompanyName"
            headertext="Company Name"/>
          <asp:boundfield datafield="Address"
            headertext="Address"/>
          <asp:boundfield datafield="City"
            headertext="City"/>
          <asp:boundfield datafield="PostalCode"
            headertext="ZIP Code"/>
          <asp:boundfield datafield="Country"
            headertext="Country"/>
        </columns>
        
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the Web.config file.                            -->
      <asp:sqldatasource id="CustomersSqlDataSource"  
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        updatecommand="Update Customers Set CompanyName=@CompanyName, Address=@Address, City=@City, PostalCode=@PostalCode, Country=@Country Where (CustomerID = @CustomerID)"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
        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">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>CommandField Example</title>
</head>
<body>
    <form id="form1" runat="server">
      
      <h3>CommandField Example</h3>

      <asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSqlDataSource" 
        autogeneratecolumns="false"
        datakeynames="CustomerID"  
        runat="server">
        
        <columns>
          <asp:commandfield showeditbutton="true"
            buttontype="Image"
            editimageurl="~\Images\EditButton.jpg"
            cancelimageurl="~\Images\CancelButton.jpg"
            updateimageurl="~\Images\UpdateButton.jpg"
            headertext="Edit Controls"/>
          <asp:boundfield datafield="CustomerID"
            headertext="Customer ID" />
          <asp:boundfield datafield="CompanyName"
            headertext="Company Name"/>
          <asp:boundfield datafield="Address"
            headertext="Address"/>
          <asp:boundfield datafield="City"
            headertext="City"/>
          <asp:boundfield datafield="PostalCode"
            headertext="ZIP Code"/>
          <asp:boundfield datafield="Country"
            headertext="Country"/>
        </columns>
        
      </asp:gridview>
            
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the Web.config file.                            -->
      <asp:sqldatasource id="CustomersSqlDataSource"  
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        updatecommand="Update Customers Set CompanyName=@CompanyName, Address=@Address, City=@City, PostalCode=@PostalCode, Country=@Country Where (CustomerID = @CustomerID)"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

注解

ShowEditButton使用 属性指定是否在CommandField数据源控件中每条记录的字段中显示“编辑”按钮。 使用“编辑”按钮可以编辑记录的值。

当用户单击“编辑”按钮时,将显示记录中每个字段的输入控件。 记录的“编辑”按钮将替换为“更新”按钮和“取消”按钮,记录的所有其他命令按钮都隐藏。 单击“更新”按钮使用数据源中的新值更新记录,而单击“取消”按钮会取消操作。

注意

当数据绑定控件与数据源控件 ((例如 SqlDataSource 控件) )结合使用时,数据绑定控件可以利用数据源控件的功能并提供自动更新功能。 对于其他数据源,必须提供例程,以便在数据绑定控件的相应事件期间执行更新操作。

ButtonType当字段的 CommandField 属性设置为 ButtonType.ButtonButtonType.Link时,EditText使用 属性指定要为“编辑”按钮显示的文本。 或者,可以通过先将 属性ButtonType.Image设置为 ButtonType ,然后设置 EditImageUrl 属性来显示图像。

适用于

另请参阅