/// <summary>
/// Invalidates the area of the specified item
/// </summary>
/// <param name="item"></param>
public void Invalidate(CalendarItem item)
{
Rect r = item.Bounds;
foreach (Rect bounds in item.GetAllBounds())
{
r = Rect.Union(r, bounds);
}
r.Inflate(Renderer.ItemShadowPadding + Renderer.ItemInvalidateMargin, Renderer.ItemShadowPadding + Renderer.ItemInvalidateMargin);
InvalidateVisual(); //Invalidate(r);
}
