.NET Framework Class Library
GridViewEnableSortingAndPagingCallbacks 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)
Syntax
Public Overridable Property EnableSortingAndPagingCallbacks As [%$TOPIC/x30c1dwc_en-us_VS_110_1_0_0_0_0%]
public virtual [%$TOPIC/x30c1dwc_en-us_VS_110_1_0_1_0_0%] EnableSortingAndPagingCallbacks { get; set; }
public:
virtual property [%$TOPIC/x30c1dwc_en-us_VS_110_1_0_2_0_0%] EnableSortingAndPagingCallbacks {
	[%$TOPIC/x30c1dwc_en-us_VS_110_1_0_2_0_1%] get ();
	void set ([%$TOPIC/x30c1dwc_en-us_VS_110_1_0_2_0_2%] value);
}
abstract EnableSortingAndPagingCallbacks : [%$TOPIC/x30c1dwc_en-us_VS_110_1_0_3_0_0%] with get, set 
override EnableSortingAndPagingCallbacks : [%$TOPIC/x30c1dwc_en-us_VS_110_1_0_3_0_1%] with get, set
<asp:[%$TOPIC/x30c1dwc_en-us_VS_110_1_0_4_0_0%] EnableSortingAndPagingCallbacks="True|False" />

Property Value

Type: SystemBoolean
true to use client-side callbacks for sorting and paging operations; otherwise, false. The default is false.
Exceptions
ExceptionCondition
NotSupportedException

The Columns collection contains a column that does not support callbacks, such as TemplateField.

Remarks

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.

Examples

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


<%@ 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>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>

<%@ 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>
Version Information

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0
Platforms

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.