public void GoBack(System.Windows.Controls.Frame view)
{
var currentContent = (UIElement)view.Content;
if (currentContent == null)
{
return;
}
Frame.GoBack.Enabled = false;
var fadeOutAnimation = new DoubleAnimation(0d, TimeSpan.FromSeconds(0.25));
fadeOutAnimation.Completed += (o, e) =>
{
view.GoBack();
Frame.GoBack.Enabled = true;
};
currentContent.BeginAnimation(UIElement.OpacityProperty, fadeOutAnimation);
}