wpf 查找父元素、子元素方法

 1         /// <summary>
 2         /// 根据类型查找子元素
 3         /// </summary>
 4         /// <typeparam name="T"></typeparam>
         /// <param name="obj"></param>
         /// <param name="typename"></param>
         /// <returns></returns>
         public List<T> GetChildObjects<T>(DependencyObject obj, Type typename) where T : FrameworkElement
         {
             DependencyObject child = null;
             List<T> childList = new List<T>();

             for (int i = ; i <= VisualTreeHelper.GetChildrenCount(obj) - ; i++)
             {
                 child = VisualTreeHelper.GetChild(obj, i);

                 if (child is T && (((T)child).GetType() == typename))
                 {
                     childList.Add((T)child);
                 }
                 childList.AddRange(GetChildObjects<T>(child, typename));
             }
             return childList;
         }

调用  List<StackPanel> initToolBarWeChatUserSp = GetChildObjects<StackPanel>(name, typeof(StackPanel));

         /// <summary>
         /// 查找父元素
         /// </summary>
         /// <typeparam name="T"></typeparam>
         /// <param name="obj"></param>
         /// <param name="name"></param>
         /// <returns></returns>
         public static T FindParent<T>(DependencyObject i_dp) where T : DependencyObject
         {
             DependencyObject dobj = (DependencyObject)VisualTreeHelper.GetParent(i_dp);
             if (dobj != null)
             {
                 if (dobj is T)
                 {
                     return (T)dobj;
                 }
                 else
                 {
                     dobj = FindParent<T>(dobj);
                     if (dobj != null && dobj is T)
                     {
                         return (T)dobj;
                     }
                 }
             }
             return null;
         }

调用  Border tbBorder = FindParent<Border>(name);