通过

CommandField.ShowInsertButton 属性

  • 参考

定义

命名空间:
System.Web.UI.WebControls
程序集:
System.Web.dll

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

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

属性值

Boolean

如果在 CommandField 中显示“新建”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 ShowInsertButton 属性在控件中 DetailsView 显示“新建”按钮，这允许用户向数据源添加新记录。


<%@ 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:detailsview id="CustomersGridView" 
        datasourceid="CustomersSqlDataSource" 
        autogeneraterows="false"
        datakeynames="CustomerID"  
        allowpaging="true" 
        runat="server">
        
        <fields>
          <asp:boundfield datafield="CustomerID"
            headertext="Customer ID" />
          <asp:boundfield datafield="CompanyName"
            headertext="CompanyName"/>
          <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"/>
          <asp:commandfield showinsertbutton="true"
            showheader="true"
            headertext="Add Customer"/>
        </fields>
        
      </asp:detailsview>
            
      <!-- 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]"
        insertcommand="Insert Into [Customers]([CustomerID], [CompanyName], [City], [PostalCode], [Country]) Values (@CustomerID, @CompanyName, @City, @PostalCode, @Country)"
        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:detailsview id="CustomersGridView" 
        datasourceid="CustomersSqlDataSource" 
        autogeneraterows="false"
        datakeynames="CustomerID"  
        allowpaging="true" 
        runat="server">
        
        <fields>
          <asp:boundfield datafield="CustomerID"
            headertext="Customer ID" />
          <asp:boundfield datafield="CompanyName"
            headertext="CompanyName"/>
          <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"/>
          <asp:commandfield showinsertbutton="true"
            showheader="true"
            headertext="Add Customer"/>
        </fields>
        
      </asp:detailsview>
            
      <!-- 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]"
        insertcommand="Insert Into [Customers]([CustomerID], [CompanyName], [City], [PostalCode], [Country]) Values (@CustomerID, @CompanyName, @City, @PostalCode, @Country)"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>"
        runat="server">
      </asp:sqldatasource>
            
    </form>
  </body>
</html>

注解

使用 ShowInsertButton 属性指定是否在字段中显示 CommandField “新建”按钮。 “新建”按钮仅在字段中显示一次 CommandField ，允许用户在数据源中添加新记录。

备注

此属性仅适用于支持插入操作的数据绑定控件，例如控件 DetailsView 。

当用户单击“新建”按钮时，将为数据绑定控件中显示的每个字段显示输入控件，从而允许用户输入新记录的值。 “新建”按钮替换为“插入”按钮和“取消”按钮，并且字段中的所有其他命令按钮 CommandField 均处于隐藏状态。 单击“插入”按钮会将记录添加到数据源，而单击“取消”按钮将取消操作。

备注

当数据绑定控件与数据源控件结合使用 (（如 SqlDataSource 控件) ）时，数据绑定控件可以利用数据源控件的功能并提供自动插入功能。 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插入操作。

ButtonType将字段的属性CommandField设置为ButtonType.Button或ButtonType.LinkNewText使用该属性指定要为“新建”按钮显示的文本。 或者，可以通过先将 ButtonType 属性设置为该属性 ButtonType.Image ，然后设置 NewImageUrl 该属性来显示图像。

适用于

另请参阅