public new void ShowDialog()
{
UIElement root = null;
BlurEffect blur = null;
if (Owner != null)
{
root = Owner.Content as UIElement;
blur = new BlurEffect();
blur.Radius = 0;
root.Effect = blur;
root.AnimateEase(UIElement.OpacityProperty, 1, 0.6, TimeSpan.FromSeconds(1));
blur.AnimateEase(BlurEffect.RadiusProperty, 1, 4, TimeSpan.FromSeconds(0.5));
// NOTE: Blur radius is internally converted to integer which is bad for slow animations.
// See https://social.msdn.microsoft.com/Forums/vstudio/en-US/ced0cc07-44fd-43e7-8829-e329be038d82
}
base.ShowDialog();
if (root != null && blur != null)
{
root.AnimateEase(UIElement.OpacityProperty, 0.6, 1, TimeSpan.FromSeconds(0.2));
blur.AnimateEase(BlurEffect.RadiusProperty, 4, 0, TimeSpan.FromSeconds(0.2));
DelayedCall.Start(() => { root.Effect = null; }, 250);
}
}