Gets or sets a value indicating whether client-side callbacks are used for sorting and paging operations.
Assembly: System.Web (in System.Web.dll)
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: SystemBooleantrue to use client-side callbacks for sorting and paging operations; otherwise, false. The default is false.
| Exception | Condition |
|---|---|
| NotSupportedException | 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.
.gif) Note |
|---|
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 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>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.
