The Page.FrameworkInitialize method initializes the System.Web.UI.Page object and creates the control tree based on the declarative nature of the page. The Page.FrameworkInitialize method is overridden by the page parsing and code generation for the System.Web.UI.Page class for a declarative page. Ordinarily, you should not over need to override this method. If overriding, be sure to call the base class's Page.FrameworkInitialize method.