void AddItem(Item val)
{
this.Dispatcher.Invoke(new Action <Item>((one) =>
{
float height = arrangement.GetTotalHeight();
int rate = DisplayOptions.DisplayRate;
if (MainContainer.Height < height * rate)
{
MainContainer.Height = height * rate;
}
UIElement photo = CreateMovable(val);
photo.MouseLeftButtonDown += ImageClick;
photo.MouseLeftButtonUp += ImageRelease;
photo.MouseMove += ImageMouseMove;
photo.MouseRightButtonUp += ImageSelect;
Canvas.SetLeft(photo, one.Left * rate);
Canvas.SetTop(photo, one.Top * rate);
MainContainer.Children.Add(photo);
}), val);
}
