DetailsView.PageIndexChanged 事件

定义

PageIndex 属性的值在分页操作后更改时发生。Occurs when the value of the PageIndex property changes after a paging operation.

public:
 event EventHandler ^ PageIndexChanged;
public event EventHandler PageIndexChanged;
member this.PageIndexChanged : EventHandler 
Public Custom Event PageIndexChanged As EventHandler 

示例

下面的代码示例演示了当用户导航PageIndexChanged到另一条DetailsView记录时, 如何使用事件将返回到只读模式。The following code example demonstrates how to use the PageIndexChanged event to return the DetailsView to read-only mode when the user navigates to another record.


<%@ 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 CustomerDetailView_PageIndexChanged(Object sender, EventArgs e)
  {
    // By default, if the DetailsView control is in edit mode and
    // user navigates to another page, the DetailsView control
    // remains in edit mode. In this example, the ChangeMode 
    // method is used to put the DetailsView control in read-only  
    // mode whenever the user navigates to another record.
      CustomerDetailView.ChangeMode(DetailsViewMode.ReadOnly);
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsView ChangeMode Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        
      <h3>DetailsView ChangeMode Example</h3>
                
        <asp:detailsview id="CustomerDetailView"
          datasourceid="DetailsViewSource"
          datakeynames="CustomerID"
          autogenerateeditbutton="true"  
          autogeneraterows="true"
          allowpaging="true"
          OnPageIndexChanged="CustomerDetailView_PageIndexChanged"
          runat="server">
               
          <fieldheaderstyle backcolor="Navy"
            forecolor="White"/>
                    
        </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="DetailsViewSource" runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
          InsertCommand="INSERT INTO [Customers]([CustomerID],
            [CompanyName], [Address], [City], [PostalCode], [Country]) 
            VALUES (@CustomerID, @CompanyName, @Address, @City, 
            @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </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 CustomerDetailView_PageIndexChanged(ByVal sender As Object, _
        ByVal e As EventArgs)
        ' By default, if the DetailsView control is in edit mode and
        ' user navigates to another page, the DetailsView control
        ' remains in edit mode. In this example, the ChangeMode 
        ' method is used to put the DetailsView control in read-only  
        ' mode whenever the user navigates to another record.
        CustomerDetailView.ChangeMode(DetailsViewMode.ReadOnly)
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>DetailsView ChangeMode Example</title>
</head>
<body>
    <form id="Form1" runat="server">
        
      <h3>DetailsView ChangeMode Example</h3>
                
        <asp:detailsview id="CustomerDetailView"
          datasourceid="DetailsViewSource"
          datakeynames="CustomerID"
          autogenerateeditbutton="true"  
          autogeneraterows="true"
          allowpaging="true"
          OnPageIndexChanged="CustomerDetailView_PageIndexChanged"
          runat="server">
               
          <fieldheaderstyle backcolor="Navy"
            forecolor="White"/>
                    
        </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="DetailsViewSource" runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
          InsertCommand="INSERT INTO [Customers]([CustomerID],
            [CompanyName], [Address], [City], [PostalCode], [Country]) 
            VALUES (@CustomerID, @CompanyName, @Address, @City, 
            @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </asp:SqlDataSource>
    </form>
  </body>
</html>

注解

当单击控件中PageIndexChanged的页导航按钮 (其CommandName属性设置为 "Page" 的按钮) 时, DetailsView控件将引发事件, 但在控件处理分页操作之后。 DetailsViewThe DetailsView control raises the PageIndexChanged event when a pager button (a button with its CommandName property set to "Page") within the control is clicked, but after the DetailsView control handles the paging operation. 这使你可以提供一个事件处理程序, 该事件处理程序将在每次发生此事件时执行自定义例程。This allows you to provide an event handler that performs a custom routine whenever this event occurs.

备注

以编程方式设置PageIndex该属性时, 不会引发此事件。This event is not raised when you programmatically set the PageIndex property.

页导航按钮通常位于DetailsView控件的页导航行中。Pager buttons are usually located in the pager row of a DetailsView control. 此事件通常用于使DetailsView控件GridView与控件同步, 或在分页操作后DetailsView设置控件的行为。This event is often used to synchronize a DetailsView control with a GridView control or to set the behavior of the DetailsView control after a paging operation.

有关如何处理事件的详细信息, 请参阅处理和引发事件For more information about how to handle events, see Handling and Raising Events.

适用于

另请参阅