This documentation is archived and is not being maintained.

Page.OnPreInit Method

Raises the PreInit event at the beginning of page initialization.

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

protected virtual void OnPreInit(
	EventArgs e
)

Parameters

e
Type: System.EventArgs

An EventArgs that contains the event data.

The OnPreInit method is called at the beginning of the page initialization stage.

After the OnPreInit method is called, personalization information is loaded and the page theme, if any, is initialized. This is also the preferred stage to dynamically define a PageTheme or MasterPage for the Page.

Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.

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

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0
Show: