Handling Back Navigation Windows 10 (UWP)

Question

In my Xaml Page I\'ve got a Frame.

I\'m trying to have a backButton event to just navigate inside frame .

so I tried to use this piece of code

Answer 1

follow these steps:

• Add two Global Variables in your page as below.

  private NavigationHelper navigationHelper;
  private RelayCommand _GoBackCommand;
  

• Then add below code in constructor of specific page.

      // below code is to override the back navigation
      // hardware back button press event from navigationHelper
      _GoBackCommand = new RelayCommand
          (
              () => this.CheckGoBack(),
              () => this.CanCheckGoBack()
          );
  
      navigationHelper.GoBackCommand = _GoBackCommand;
      // ---------
  

• Then add both those methods we've just declared in constructor.

  private bool CanCheckGoBack()
  {
      // this should be always true to make sure the app handles back buton manually.
      return true;
  }
  
  private void CheckGoBack()
  {
      // this will be execute when back button will be pressed
  }
  

ps. - for this you might need to use BasicPage instead of BlankPage while adding new page.

hope this will help..!