static TickBar()
{
WidthProperty.OverrideDefaultValue <TickBar>(100);
HeightProperty.OverrideDefaultValue <TickBar>(1);
IsVisibleProperty.Changed.AddClassHandler <TickBar>((o, e) => OnIsVivibleChanged(o, e));
PlacementProperty.Changed.AddClassHandler <TickBar>((o, e) => OnPlacementChanged(o, e));
//AffectsRender<TickBar>(FillProperty, IsVisibleProperty, PlacementProperty);
//AffectsArrange<TickBar>(IsVisibleProperty);
}
static DrawingIcon()
{
WidthProperty.OverrideDefaultValue <DrawingIcon>(16);
HeightProperty.OverrideDefaultValue <DrawingIcon>(16);
}