How to override the default BackKey button when page created

Question

Here the default backKey button when a page is created:

The problem:

How to override this ? I want to check something before this backKey canGoBack !



 <Button Content="Button" Click="GoBack" IsEnabled="{Binding Frame.CanGoBack, ElementName=pageRoot}" Style="{StaticResource BackButtonStyle}" HorizontalAlignment="Left" 
Margin="16,15,0,0" VerticalAlignment="Top" Height="55"/>


---- Update : in LayoutAwarePage.cs


protected virtual void GoBack(object sender, RoutedEventArgs e)
        {
            // Use the navigation frame to return to the previous page
            if (this.Frame != null && this.Frame.CanGoBack) this.Frame.GoBack();
        }

Farhan Ghumra Farhan Ghumra · Accepted Answer · 2013-10-24T06:16:58

UPDATE 1

protected override void GoBack(object sender, RoutedEventArgs e)
{
    base.GoBack(sender, e);
    //Your logic goes here
}

I think you are using LayoutAwarePage class. It has implementation of GoBack event. You can edit the implementation. LayoutAwarePage.cs will be in common folder of project.

How to override the default BackKey button when page created

1 Answers