System.Windows.Forms.Form.OnMenuComplete C# (CSharp) Method

		protected internal virtual void OnMenuComplete(EventArgs e) {
			EventHandler eh = (EventHandler)(Events [MenuCompleteEvent]);
			if (eh != null)
				eh (this, e);
		}

        // UIA Framework Note: Used to expand/collapse MenuItems
        public void OnMouseUp(MouseEventArgs args)
        {
            /* mouse down dont comes from menu */
            if (!mouse_down)
            {
                return;
            }

            mouse_down = false;

            /* is not left button */
            if ((args.Button & MouseButtons.Left) == 0)
            {
                return;
            }

            MenuItem item = GetItemAtXY(args.X, args.Y);

            /* the user released the mouse button outside the menu */
            if (item == null)
            {
                Deactivate();
                return;
            }

            if (!item.Enabled)
            {
                return;
            }

            /* Deactivate the menu when is topmenu and popdown and */
            if (((CurrentMenu == TopMenu) && !(CurrentMenu is ContextMenu) && popdown_menu) || !item.IsPopup)
            {
                Deactivate();
                UpdateCursor();
            }

            /* Perform click when is not a popup */
            if (!item.IsPopup)
            {
                DeselectItem(item);

                // Raise the form's MenuComplete event
                if (TopMenu != null && TopMenu.Wnd != null)
                {
                    Form f = TopMenu.Wnd.FindForm();

                    if (f != null)
                    {
                        f.OnMenuComplete(EventArgs.Empty);
                    }
                }

                item.PerformClick();
            }
        }