On Pre Init(EventArgs) Method
Raises the PreInit event at the beginning of page initialization.
protected: virtual void OnPreInit(EventArgs ^ e);
protected virtual void OnPreInit (EventArgs e);
abstract member OnPreInit : EventArgs -> unit override this.OnPreInit : EventArgs -> unit
Protected Overridable Sub OnPreInit (e As EventArgs)
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.