private void SubscribeBlock(Block block)
{
ContainerBlock oldParent = block.Parent;
RootBlock oldRoot = block.Root;
// set block's parent
block.Parent = this.Parent;
block.MyControl.Parent = Parent.MyControl as ContainerControl;
// set block's root
if (Parent.Root != null)
{
block.Root = Parent.Root;
block.MyControl.Root = Parent.Root.MyRootControl;
}
block.NotifyParentChanged(oldParent);
block.NotifyRootChanged(oldRoot);
// subscribe to block's events
block.KeyDown += RaiseKeyDown;
}
/// <summary>
/// Unsubscribe from blocks events
/// </summary>
private void UnsubscribeBlock(Block block)
{
ContainerBlock oldParent = block.Parent;
block.KeyDown -= RaiseKeyDown;
block.Prev = null;
block.Next = null;
block.Root = null;
block.MyControl.Root = null;
block.Parent = null;
block.MyControl.Parent = null;
block.NotifyParentChanged(oldParent);
block.OnAfterDelete();
}