private void _OnStart()
{
spinner.Visibility = Visibility.Visible;
var timeline = new DoubleAnimation(359, new Duration(TimeSpan.FromMilliseconds(650)));
timeline.RepeatBehavior = RepeatBehavior.Forever;
SpinnerRotate.BeginAnimation(RotateTransform.AngleProperty, timeline);
}
private void _OnStop()
{
spinner.Visibility = Visibility.Hidden;
SpinnerRotate.BeginAnimation(RotateTransform.AngleProperty, null);
}
