| This file is used in WPF/SilverLight applications. And the purpose of using this files is given below:-
(1)Its define global styles inside the resources tag
(2)Its define properties that can then be used for data passing between .xaml pages.
(3)Its define event handlers like Application_Error, Application_Startup wherever needed.
(4)Its provides a startup URI in WPF or specify the startup page in SilverLight applications | | |