The Page.OnPreInit(EventArgs) method is called at the beginning of the page initialization stage.

After the Page.OnPreInit(EventArgs) 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 System.Web.UI.PageTheme or System.Web.UI.MasterPage for the Page.

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

The Page.OnPreInit(EventArgs) 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.

Namespace: System.Web.UI
Assembly: System.Web (in System.Web.dll)
Assembly Versions: 2.0.0.0