private void AddMenuItemsToMenuTree(IDropInfo dropInfo, List <MenuTreeNodeViewModel> SourceMenuItems, MenuTreeNodeViewModel TargetMenuItem, ObservableCollection <MenuTreeNodeViewModel> Targets)
        {
            foreach (var SourceItem in SourceMenuItems)
            {
                foreach (var Node in RegistedMenuTreeNodes)
                {
                    RemoveMenuNodeReclusive(Node, SourceItem);
                }
                RegistedMenuTreeNodes.Remove(SourceItem);

                if (TargetMenuItem != null)
                {
                    if (!TargetMenuItem.HasExecutableNode)
                    {
                        TargetMenuItem.Children.Add(SourceItem);
                    }
                }
                else
                {
                    RegistedMenuTreeNodes.Add(SourceItem);
                }
            }
        }
 private void AddCommandItemsToMenuTree(IDropInfo dropInfo, List <LauncherCommandInfoViewModel> SourceCommandItems, MenuTreeNodeViewModel TargetMenuItem, ObservableCollection <MenuTreeNodeViewModel> Targets)
 {
     if (TargetMenuItem != null)
     {
         if (!TargetMenuItem.HasExecutableNode)
         {
             foreach (var SourceItem in SourceCommandItems)
             {
                 TargetMenuItem.Children.Add(new MenuTreeNodeViewModel(
                                                 new MenuTreeNode()
                 {
                     Name          = SourceItem.Name,
                     IsVisible     = true,
                     Type          = MenuType.Menu,
                     CommandInfoID = SourceItem.CommandInfo.UID,
                     Children      = new ObservableCollection <MenuTreeNode>()
                 }));
             }
         }
     }
     else
     {
         foreach (var SourceItem in SourceCommandItems)
         {
             RegistedMenuTreeNodes.Add(new MenuTreeNodeViewModel(
                                           new MenuTreeNode()
             {
                 Name          = SourceItem.Name,
                 IsVisible     = true,
                 Type          = MenuType.Menu,
                 CommandInfoID = SourceItem.CommandInfo.UID,
                 Children      = new ObservableCollection <MenuTreeNode>()
             }));
         }
     }
 }