GridView.OnPageIndexChanging Method (System.Web.UI.WebControls)

OnPageIndexChanging Method

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

GridView..::.OnPageIndexChanging Method

Raises the PageIndexChanging event.

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

Syntax

Visual Basic (Declaration)

Protected Overridable Sub OnPageIndexChanging ( _
    e As GridViewPageEventArgs _
)

Visual Basic (Usage)

Dim e As GridViewPageEventArgs

Me.OnPageIndexChanging(e)

protected virtual void OnPageIndexChanging(
    GridViewPageEventArgs e
)

Visual C++

protected:
virtual void OnPageIndexChanging(
    GridViewPageEventArgs^ e
)

JScript

protected function OnPageIndexChanging(
    e : GridViewPageEventArgs
)

Parameters

e: Type: System.Web.UI.WebControls..::.GridViewPageEventArgs
A GridViewPageEventArgs that contains event data.

Exceptions

Exception	Condition
HttpException	There is no handler for the PageIndexChanging event.

Remarks

The PageIndexChanging event is raised when one of the pager buttons is clicked, but before the GridView control handles the paging operation. This enables you to provide an event-handling method that performs a custom routine, such as canceling the paging operation, whenever this event occurs.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnPageIndexChanging method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors:

When overriding OnPageIndexChanging in a derived class, be sure to call the base class's OnPageIndexChanging method so that registered delegates receive the event.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

Reference

GridView Class

GridView Members

System.Web.UI.WebControls Namespace

GridViewPageEventArgs

Other Resources

Raising an Event