By default when you create a Windows Phone 7 application, a start page is created for you. But what if you want to change this later on to a different page? We need a way to specify which page should be used as start page. All that we need now is to change the startpage from MainPage.xaml to newstartpage.xaml .
- Expand the Properties folder of the WP7 C# Project and Open the WMAppManifest.xml
- This file keeps track of things that belongs to the Application . The important property here is the DefaultTask.
- Change the NavigationPage to the page you want to use as start page .