private static void OnMouseUp(object sender, FrameworkElement attachedToEl)
{
FrameworkElement draggedEl = (FrameworkElement)sender;
bool canDrop = SetMousePosition(draggedEl, attachedToEl);
if (canDrop)
{
FrameworkElement containerEl = GetContainerElement(attachedToEl);
// drop
IDropOperation dropOperation = GetTheDropOperation(attachedToEl);
Point mousePositionWithinContainerElement = GetMousePositionWithinContainerElement(attachedToEl);
dropOperation.Drop(draggedEl, containerEl, mousePositionWithinContainerElement);
SetCanDrop(attachedToEl, false);
}
SetIsDragAbove(attachedToEl, false);
}
public static void SetTheDropOperation(DependencyObject obj, IDropOperation value)
{
obj.SetValue(TheDropOperationProperty, value);
}
