Disable the back key for Windows Phone development

During the development process, the page is stateless, which may cause the page rollback operation to reverse business needs and disable rollback.

Two steps can be easily completed

First, register the event in the XAML file:

Backkeypress = "phoneapplicationpage_backkeypress">

Second, the background implementation method:

Private void phoneapplicationpage_backkeypress (Object sender, system. componentmodel. canceleventargs e) {e. Cancel = true ;}

Or you can directly implement overload

Protected override void onbackkeypress (system. componentmodel. canceleventargs e) {e. Cancel = true ;}