ASP.Net TreeView递归

 

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

 

using Qhr.QhrService;

 

namespace Qhr

{

    public partial class test : System.Web.UI.Page

    {

        Qhr.QhrService.QhrServiceClient proxy = new QhrService.QhrServiceClient();

        QhrService.MyProtocolStructureCollection collection = null;

 

        protected void Page_Load(object sender, EventArgs e)

        {

            if (!IsPostBack)

            {

                collection = proxy.GetAllProtocolStructure();

                LoadTree();

            }

        }

 

        private void LoadTree()

        {

            this.TreeView1.Nodes.Clear();

            InitTree(this.TreeView1.Nodes, null);

        }

 

        private void InitTree(TreeNodeCollection Nds, string parentId)

        {

            TreeNode tmpNd = null;

            MyProtocolStructureCollection collectionTemp = new MyProtocolStructureCollection();

            foreach (MyProtocolStructure psTemp in collection)

            {

                if (psTemp.Pid == parentId)

                {

                    collectionTemp.Add(psTemp);

                }

            }

 

            foreach (MyProtocolStructure ps in collectionTemp)

            {

                tmpNd = new TreeNode();

                tmpNd.Text = ps.Name;

                tmpNd.Value = ps.Id;

                if (parentId == null)

                {

                    tmpNd.Expanded = true;

                }

                else

                {

                    tmpNd.Expanded = false;

                }

                Nds.Add(tmpNd);

                InitTree(Nds[Nds.Count - 1].ChildNodes, ps.Id);

            }

        }

    }

}