WebForm中创建树节点TreeNode

Tree:

namespace ECTECH.NorthSJ.Web.SysData

{

    public partial class testTree : BasePage

    {

        protected int roleId = ;

        protected void Page_Load(object sender, EventArgs e)

        {

            if(!IsPostBack)

            {

            List<Model.Funcs> list = new BLL.RoleFuncs().GetRFunc("", roleId);

            foreach(Model.Funcs func in list)

            {

                FineUI.TreeNode node = new TreeNode() { Text = func.Name, NodeID = func.ID.ToString(), Leaf = false, EnableCheckBox=true };

                LoadChildNode(func.FuncCode,roleId, node);

                tree1.Nodes.Add(node);

            }

            }

        }

        private void LoadChildNode(string parentCode, int roleId,TreeNode node)

        {

            List<Model.Funcs> list = new BLL.RoleFuncs().GetRFunc(parentCode, roleId);

            foreach (Model.Funcs func in list)

            {

                TreeNode nodeChild = new TreeNode() { Text = func.Name, NodeID = func.ID.ToString(), Leaf = true, EnableCheckBox = true };

                node.Nodes.Add(nodeChild);

            }

        }

        protected void btn1_Click(object sender, EventArgs e)

        {

            string[] ids = tree1.SelectedNodeIDArray;

            string idStr = string.Join(",", ids);

            lbResult.Text = idStr;

        }

    }

Form:

    <form id="form1" runat="server">

    <div>

    <x:PageManager ID="PageManager1" AutoSizePanelID="RegionPanel1" runat="server">

    </x:PageManager>

    <x:Tree ID="tree1" EnableMultiSelect="true"  runat="server"></x:Tree>

    <x:Button ID="btn1" Text="确定"  runat="server" OnClick="btn1_Click"></x:Button>

    <x:Label ID="lbResult" EncodeText="false" runat="server"></x:Label>

    </div>

    </form>

树节点，绑定到DataTable:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Data;

using FineUI;

namespace Test_Web1

{

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

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            if(! IsPostBack)

            {

                LoadData();

            }

        }

        private void LoadData()

        {

            DataTable dt = CreateTable();

            DataSet ds = new DataSet();

            ds.Tables.Add(dt);

            ds.Relations.Add("treeRelation", ds.Tables[].Columns["ID"],ds.Tables[].Columns["PID"]);

            foreach(DataRow row in ds.Tables[].Rows)

            {

                if(row["PID"]==DBNull.Value)

                {

                    TreeNode node = new TreeNode();

                    node.Text = row["Name"].ToString();

                    node.NodeID = row["ID"].ToString();

                    node.Expanded = true;

                    Tree1.Nodes.Add(node);

                    ResolveSubTree(row, node);

                }

            }

        }

        private void ResolveSubTree(DataRow row, TreeNode node)

        {

            DataRow[] rows = row.GetChildRows("treeRelation");

            if(rows.Length>)

            {

                foreach(DataRow r in rows)

                {

                    TreeNode n = new TreeNode();

                    n.Text = r["Name"].ToString();

                    n.NodeID = r["ID"].ToString();

                    n.ParentNode = node;

                    node.Nodes.Add(n);

                    ResolveSubTree(r, n);

                }

            }

        }

        public DataTable CreateTable()

        {

            DataTable dt = new DataTable();

            dt.Columns.Add("ID", typeof(string));

            dt.Columns.Add("Name", typeof(string));

            dt.Columns.Add("PID", typeof(string));

            DataRow row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "四川省";

            row["PID"] = DBNull.Value;

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "江苏省";

            row["PID"] = DBNull.Value;

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "苏州市";

            row["PID"] = "";

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "常州市";

            row["PID"] = "";

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "镇江市";

            row["PID"] = "";

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "无锡市";

            row["PID"] = "";

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "达州市";

            row["PID"] = "";

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "广元市";

            row["PID"] = "";

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "宣汉县";

            row["PID"] = "";

            dt.Rows.Add(row);

            row = dt.NewRow();

            row["ID"] = "";

            row["Name"] = "大竹县";

            row["PID"] = "";

            dt.Rows.Add(row);

            return dt;

        }

    }

}