[ASP.NET1.1]Common层通用代码之树型控件递归加入子项方法

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Web.UI.WebControls;

namespace Common
...{
    public class TreeControls
    ...{
        
        private string NodeID;
        private string ParentNodeID;
        private string NodeName;
        private string NodeUrl;

        private System.Data.DataTable tabtree;

        private StringBuilder Filter;

        public TreeControls(DataTable tabtree, string NodeID, string ParentNodeID, string NodeName, string NodeUrl)
        ...{
            this.NodeID = NodeID;
            this.ParentNodeID = ParentNodeID;
            this.NodeName = NodeName;
            this.NodeUrl = NodeUrl;

            this.tabtree = tabtree;
        }


        // 从根节点开始递归调用显示子树
        public void InitTree(TreeNodeCollection Nds, string parentId)
        ...{
            TreeNode tmpNd;
            Filter = new StringBuilder();
            Filter.Append(this.ParentNodeID.ToString());
            Filter.Append("='");
            Filter.Append(parentId);
            Filter.Append("'");

            DataRow[] rows = tabtree.Select(Filter.ToString());

            foreach (DataRow row in rows)
            ...{
                tmpNd = new TreeNode();

                tmpNd.ID = row[this.NodeID.ToString()].ToString();
                tmpNd.Text = row[this.NodeName.ToString()].ToString();
                tmpNd.NavigateUrl = row[this.NodeUrl.ToString()].ToString();
                Nds.Add(tmpNd);
                InitTree(tmpNd.Nodes, tmpNd.ID);
            }
        }
        
    }
}