How to remove Navigation Back Entry in Windows Phone 8

I will show you how to remove navigation back entry in windows phone in different ways:

// To Remove Single Entry NavigationService.RemoveBackEntry();

To remove all navigation back entry

while (NavigationService.CanGoBack)

     NavigationService.RemoveBackEntry();

Remove navigation back entry except MainPage

if (NavigationService.BackStack.Any())

{

    var length = NavigationService.BackStack.Count() - 1;

    var i = 0;

    while (i < length)

    {

        NavigationService.RemoveBackEntry();

        i++;

    }

}