Telerik RadTreeListView示例

        <telerik:RadTreeListView Margin="3"
                Name="tv" Grid.Row="2"
                telerik:StyleManager.Theme="Office_Silver" 
                AutoGenerateColumns="False" 
                IsFilteringAllowed="False" 
                HierarchyColumnIndex="1"
                RowIndicatorVisibility="Collapsed"
                SelectedCellsChanged="tv_SelectedCellsChanged"
                IsReadOnly="True">
            <telerik:RadTreeListView.ChildTableDefinitions>
                <telerik:TreeListViewTableDefinition ItemsSource="{Binding Items}" />
            </telerik:RadTreeListView.ChildTableDefinitions>
            <telerik:RadTreeListView.Columns>
                <telerik:GridViewSelectColumn />
                <telerik:GridViewDataColumn DataMemberBinding="{Binding ID}" Header="分类编号" IsVisible="False"/>
                <telerik:GridViewDataColumn DataMemberBinding="{Binding CategoryName}" Header="分类名称" Width="300" />
            </telerik:RadTreeListView.Columns>
        </telerik:RadTreeListView>

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections.ObjectModel;

namespace SGSGHome.Views.File
{
    public class CatItem
    {
        public long ID { get; set; }
        public string CategoryName { get; set; }
        public long? ParentID { get; set; }
        public ObservableCollection<CatItem> Items { get; set; }
        public CatItem(long id, string catName, long? parentID)
        {
            this.ID = id;
            this.CategoryName = catName;
            this.ParentID = parentID;
            this.Items = new ObservableCollection<CatItem>();
        }
    }
}

        public IList<CoreService.FileCategory> CatList { get; set; }

        void client_GetFileCategoryListCompleted(object sender, CoreService.GetFileCategoryListCompletedEventArgs e)
        {
            //递归填充TreeListView
            this.CatList = e.Result;

            var root = CatList.First(x => x.ParentID == null);
            var rootItem = new CatItem(root.ID, root.CategoryName, null);
            AddChild(root.ID, rootItem);
            tv.ItemsSource = new ObservableCollection<CatItem>() { rootItem };
            tv.AutoExpandItems = true;
        }

        //递归方法
        void AddChild(long parentID, CatItem parentItem)
        {
            var filterList = CatList.Where(x => x.ParentID == parentID).ToList();

            foreach (var tt in filterList)
            {
                var childItem = new CatItem(tt.ID, tt.CategoryName, tt.ParentID);
                parentItem.Items.Add(childItem);
                var childrenList = CatList.Where(x => x.ParentID == tt.ID).ToList();
                if (childrenList.Count > 0)
                {
                    AddChild(tt.ID, childItem);
                }
            }
        }