//添加一个菜单
//parentID == -1 ,添加到根节点
public bool AddMenuItem(int parentID, Menu add)
{
if (parentID == -1)
{
Menu root = GetRootItem();
return(db_menus.AddMenu(root.Menu_Id, add));
}
else
{
return(db_menus.AddMenu(parentID, add));
}
}