public void GoBack()
{
if (!CanGoBack)
{
return;
}
var page = PageStack[PageIndex];
var args = new HBNavigatingCancelEventArgs();
page.OnNavigatingFrom(args);
page.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
PageStack.Remove(page);
FrameGrid.Children.Remove(page);
page.OnNavigatedFrom(new HBNavigationEventArgs());
GC.SuppressFinalize(page);
GC.Collect();
page.Content = null;
page = null;
PageIndex--;
if (PageIndex >= 0)
{
page = PageStack[PageIndex];
//page.OnNavigatedTo(new HBNavigationEventArgs() { NavigationMode = NavigationMode.Back });
}
else
{
this.Visibility = Visibility.Collapsed;
}
}
public virtual void OnNavigatingFrom(HBNavigatingCancelEventArgs e)
{
ViewModel.OnNavigatingFrom(e);
}
protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
{
base.OnNavigatingFrom(e);
ViewModel?.OnNavigatingFrom(HBNavigatingCancelEventArgs.Convert(e));
}
public void GoBack()
{
if (!CanGoBack)
return;
var page = PageStack[PageIndex];
var args = new HBNavigatingCancelEventArgs();
page.OnNavigatingFrom(args);
page.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
PageStack.Remove(page);
FrameGrid.Children.Remove(page);
page.OnNavigatedFrom(new HBNavigationEventArgs());
GC.SuppressFinalize(page);
GC.Collect();
page.Content = null;
page = null;
PageIndex--;
if (PageIndex >= 0)
{
page = PageStack[PageIndex];
//page.OnNavigatedTo(new HBNavigationEventArgs() { NavigationMode = NavigationMode.Back });
}
else {
this.Visibility = Visibility.Collapsed;
}
}
public virtual void OnNavigatingFrom(HBNavigatingCancelEventArgs e)
{
ViewModel.OnNavigatingFrom(e);
}