public void Show(double duration = 0)
{
TrasitionMargin(Border.Margin, new Thickness(0), Border.Name);
_isHidden = false;
TopLevelContent.IsEnabled = true;
if (duration > 0)
{
if (_hideParallelTask != null)
{
_hideParallelTask.RequestStop();
}
_hideParallelTask = new ParallelTask(duration);
_hideParallelTask.AddTask(InvokeHide);
_hideParallelTask.Start();
}
}