.aspx

 1<%@ Register TagPrefix="ComponentArt" Namespace="ComponentArt.Web.UI" Assembly="ComponentArt.Web.UI" %>
 2
 3<ComponentArt:TreeView id="TreeView1" Height="350px" Width="100%" 
 4    DragAndDropEnabled="false" 
 5    NodeEditingEnabled="false"
 6    KeyboardEnabled="true"
 7    CssClass="TreeView" 
 8    NodeCssClass="TreeNode" 
 9    SelectedNodeCssClass="SelectedTreeNode" 
10    HoverNodeCssClass="HoverTreeNode"
11    NodeEditCssClass="NodeEdit"
12    LineImageWidth="19" 
13    LineImageHeight="20"
14    DefaultImageWidth="16" 
15    DefaultImageHeight="16"
16    ItemSpacing="0" 
17    ImagesBaseUrl="images/"
18    NodeLabelPadding="3"
19    ShowLines="true" 
20    LineImagesFolderUrl="images/lines/"
21    EnableViewState="true"
22    runat="server" LoadingFeedbackText="Loading " >
23  </ComponentArt:TreeView>

.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;
using ComponentArt.Web.UI;

public partial class ProjectTree : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

        if (!Page.IsPostBack)
        {
            TreeViewNode rootnode = new TreeViewNode();
            rootnode.Text = "项目";
            rootnode.Expanded = true;
            TreeView1.Nodes.Add(rootnode);

            //ProjectDB pdb = new ProjectDB();
          //  IList<Project.Model.Project> plist = pdb.ProjectList();
            //foreach (Project.Model.Project p in plist)
           // {
                TreeViewNode pnode = new TreeViewNode();
                pnode.Text = "test";
                pnode.ID = "1001";
                pnode.Value = "Project";
                pnode.ContentCallbackUrl = "Test.aspx?Pid=10000";
                rootnode.Nodes.Add(pnode);
           // }
        }      


    }
}

test.aspx

protected void Page_Load(object sender, EventArgs e)
    {
        Response.ContentType = "text/xml";
        ComponentArt.Web.UI.TreeView TreeView1 = new ComponentArt.Web.UI.TreeView();

       // ProjectDB pdb = new ProjectDB();
        if (Request.QueryString["Pid"] != null && Request.QueryString["Pid"] != "")
        {
           
           
            for (int i = 1; i < 10; i++)
            {
                ComponentArt.Web.UI.TreeViewNode newNode = new ComponentArt.Web.UI.TreeViewNode();

                newNode.Text = i.ToString();
                //newNode.ImageUrl = dbRow["ImageUrl"].ToString();
                newNode.ID = i.ToString();

                newNode.ContentCallbackUrl = "test.aspx?Pid="+i.ToString();
                TreeView1.Nodes.Add(newNode);
            }
        }

        Response.Write(TreeView1.GetXml());


    }