首先我的样式操作：
文件名是：TreeViewStyle

我的界面配置：

然后 关于 treeview 的配置是

这个配置必须要 绑定ThisName textbolck 的text 显示 然后
ItemsSource="{Binding Children} 对应就是属性children数据
其中 属性为：

   /// 
     /// 栏目表     /// 
     public  class MainItemInfos     {                        /// 
         ///          /// 
          [Description("")]         public int  Id { get; set; }          /// 
         /// 编号         /// 
          [Description("编号")]         public string ThisNo { get; set; }          /// 
         /// 父id         /// 
          [Description("父id")]         public int  PId { get; set; }          /// 
         /// 当前地址         /// 
          [Description("当前地址")]         public string  ThitPath { get; set; }          /// 
         /// 当前名称         /// 
          [Description("当前名称")]         public string  ThisName { get; set; }          /// 
         /// 是否启用         /// 
          [Description("是否启用")]         public bool  IsUsed { get; set; }          /// 
         /// 数据类型（0，首页，1 栏目，3根栏目）         /// 
          [Description("数据类型（0 顶级页，1首页，2 栏目，3根栏目）")]         public EItemType  PathType { get; set; }          /// 
         ///          /// 
          [Description("")]         public DateTime  CreateDate { get; set; }          /// 
         ///          /// 
          [Description("")]         public DateTime  Updated { get; set; }         /// 
         /// 当前         /// 
         public MainItemInfos ParentInfo { get; set; }          /// 
         /// 当前所有子数据         /// 
         public ObservableCollection Children { get; set; }     } 

另外 从数据库获取来后的list操作

 /// 
         /// 获取树结构下所有数据         /// 
         ///          ///          ///          public void GetTreeNodeModel(MainItemInfos ThisInfo, List ThisListAll, ref List RetureInfolist)         {             List ListOut = new List();             IEnumerable ListThisMains = ThisListAll.Where(x => x.PId == ThisInfo.Id);             if (ListThisMains != null && ListThisMains.Count() > 0)             {                 ThisInfo.Children = new System.Collections.ObjectModel.ObservableCollection(ListThisMains);                 RetureInfolist.Add(ThisInfo);                 foreach (MainItemInfos OneInfo in ThisInfo.Children)                 {                      OneInfo.ParentInfo = ThisInfo;                     GetChildren(OneInfo, ThisListAll);                     //GetTreeNodeModel(OneInfo, ThisListAll, ref RetureInfolist);                 }             }         }         /// 
         /// 子目录下的文件（这样只有一个List可以只有一个树结构）一一更新         /// 
         ///          ///          public void GetChildren(MainItemInfos ThisModel,List ListAll)         {             if (ListAll != null )             {                 IEnumerable ListThisMains = ListAll.Where(x => x.PId == ThisModel.Id);                  if (ListThisMains!=null &&  ListThisMains.Count() > 0)                 {                     ThisModel.Children = new System.Collections.ObjectModel.ObservableCollection(ListThisMains) ;                     foreach (MainItemInfos OneItem in ThisModel.Children)                     {                         GetChildren(OneItem,ListAll);                     }                 }                              }                    }         /// 
         /// 刷新树结构         /// 
         public void ReflashNodes()         {             List ListDB = new DAL.DALMainItemInfos().QueryList().ToList();             MainItemInfos ThisZongInfos = ListDB.Where(x => x.PathType == 0).FirstOrDefault();             ListDB.Remove(ThisZongInfos);             List ListBinding = new List();             GetTreeNodeModel(ThisZongInfos, ListDB, ref ListBinding);             if (ListBinding != null)             {                 MainTree.ItemsSource = ListBinding;             }         }