Overriding the Back Key in Windows Phone

Here is the code to override the e Back Key in Windows Phone



<phone:PhoneApplicationPage

x:Class="PhoneApp1.MainPage"

…

shell:SystemTray.IsVisible="True"

BackKeyPress="PhoneApplicationPage_BackKeyPress">
In code:

private void PhoneApplicationPage_BackKeyPress(object sender, System.ComponentModel.CancelEventArgs e)

{

e.Cancel = true; // Tell system we've handled it

// Hide the popup...

...

}