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GridView.EnableSortingAndPagingCallbacks Property

Gets or sets a value indicating whether client-side callbacks are used for sorting and paging operations.

Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)

public virtual bool EnableSortingAndPagingCallbacks { get; set; }
/** @property */
public boolean get_EnableSortingAndPagingCallbacks ()

/** @property */
public void set_EnableSortingAndPagingCallbacks (boolean value)

public function get EnableSortingAndPagingCallbacks () : boolean

public function set EnableSortingAndPagingCallbacks (value : boolean)

Not applicable.

Property Value

true to use client-side callbacks for sorting and paging operations; otherwise, false. The default is false.

Exception typeCondition

SupportsCallback

This property is set to true when the Columns collection contains a column that does not support callbacks, such as TemplateField.

By default, when a sorting or paging operation is performed, the GridView control posts back to the server to perform the operation. When the EnableSortingAndPagingCallbacks property is set to true, a service is called on the client to perform sorting and paging operations, which eliminates the need to post back to the server.

NoteNote:

Not all browsers support this feature. To determine whether a browser supports this feature, use the SupportsCallback property.

All columns in the Columns collection must support callbacks for this feature to work. If the Columns collection contains a column that does not support callbacks, such as TemplateField, a NotSupportedException exception is raised.

The following code example demonstrates how to use the EnableSortingAndPagingCallbacks property to enable client-side callbacks for sorting and paging operations.


<%@ 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>GridView EnableSortingAndPagingCallbacks Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>GridView EnableSortingAndPagingCallbacks Example</h3>

      <asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSource" 
        autogeneratecolumns="true"
        emptydatatext="No data available." 
        allowpaging="true"
        allowsorting="true"
        enablesortingandpagingcallbacks="true"        
        runat="server">
                
      </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="CustomersSource"
        selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>
        
    </form>
  </body>
</html>


Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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