一、查找某种类型的子控件，并返回一个List集合public List
     
       GetChildObjects
      
       (DependencyObject obj, Type typename) where T : FrameworkElement        {            DependencyObject child = null; List
       
         childList = new List
        
         (); for (int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++) { child = VisualTreeHelper.GetChild(obj, i); if (child is T && (((T)child).GetType() == typename)) { childList.Add((T)child); } childList.AddRange(GetChildObjects
         
          (child,typename)); } return childList; } 调用： List
           listButtons = GetChildObjects
          (parentPanel, typeof(Button)); 二、通过名称查找子控件，并返回一个List集合 public List
           
             GetChildObjects
            
             (DependencyObject obj, string name) where T : FrameworkElement { DependencyObject child = null; List
             
               childList = new List
              
               (); for (int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++) { child = VisualTreeHelper.GetChild(obj, i); if (child is T && (((T)child).GetType() == name |string.IsNullOrEmpty(name))) { childList.Add((T)child); } childList.AddRange(GetChildObjects
               
                (child,name)); } return childList; } 调用： List
               
              
             
            
           
           listButtons = GetChildObjects
          (parentPanel, "button1"); 三、通过名称查找某子控件： public T GetChildObject
           
            (DependencyObject obj, string name) where T : FrameworkElement { DependencyObject child = null; T grandChild = null; for (int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++) { child = VisualTreeHelper.GetChild(obj, i); if (child is T && (((T)child).Name == name | string.IsNullOrEmpty(name))) { return (T)child; } else { grandChild = GetChildObject
            
             (child, name); if (grandChild != null) return grandChild; } } returnnull; } 调用： StackPanel sp = GetChildObject
             
              (this.LayoutRoot, "spDemoPanel"); 四、通过名称查找父控件 public T GetParentObject
              
               (DependencyObject obj, string name) where T : FrameworkElement { DependencyObject parent = VisualTreeHelper.GetParent(obj); while (parent != null) { if (parent is T && (((T)parent).Name == name | string.IsNullOrEmpty(name))) { return (T)parent; } parent = VisualTreeHelper.GetParent(parent); } returnnull; } 调用： Grid layoutGrid = VTHelper.GetParentObject
               
                (this.spDemoPanel, "LayoutRoot");