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动态绑定treeview的方法 

 前台代码 注意 一定要加上Target="contentFrame"否则跳转的时候 跳不到内容框架
Page Language="C#" AutoEventWireup="true" CodeFile="Left.aspx.cs" Inherits="Left" %>

<html>
<head id="Head1" runat="server">
    <title></title>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <link href="../Style/Style.css" rel="stylesheet" type="text/css" />
</head>
<body leftmargin="0" topmargin="0" bgcolor="#f7faff">
    <form id="form1" runat="server">
    <table width="200" border="0" cellpadding="0" cellspacing="0">
        <tr>
            <td>
                <table cellpadding="0" cellspacing="0" border="0" style="color: White; font-family: 宋体, Arial;
                    font-size: 12px;">
                    <tr>
                        <td align="left" background="../images/czy.png" width="200" height="30">
                            &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;登录人:&nbsp;<asp:Label
                                ID="lbLoginUser" runat="server"></asp:Label>
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>
    <table width="200" border="0" cellpadding="0" cellspacing="0">
        <tr>
            <td align="left" valign="top">
                <div style="height: 480px; overflow:scroll; scrollbar-face-color: #DBEBFE; scrollbar-shadow-color: #B8D6FA;
                    scrollbar-highlight-color: #FFFFFF; scrollbar-3dlight-color: #DBEBFE; scrollbar-darkshadow-color: #458CE4;
                    scrollbar-track-color: #FFFFFF; scrollbar-arrow-color: #458CE4">
                    <asp:TreeView ID="tvMenu1" runat="server" EnableViewState="False" BackColor="#f7faff"
                        ForeColor="Black" ShowLines="True" Target="contentFrame"  ExpandDepth="1">
 </form>
</body>
</html>
后台代码
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data;
using System.IO;
using NetBuild.Common;
using NetBuild.Models;
using NetBuild.Bussiness;
using System.Linq;
public partial class Left : System.Web.UI.Page
{

    /// <summary>
    /// 
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
        {
            TreeNode tmpNode;
            lbLoginUser.Text = Session["LoginName"].ToString();


            AddTreeNode(-1, (System.Web.UI.WebControls.TreeNode)null);
        }
        
        
        
        }
    
     public DataTable bind()
    {
        string str1 = "select * from Common_Menu  ";
        DataSet myds = new DataSet();
        myds = SQLHelper.GetDataSet(str1);
        return myds.Tables[0];



    }
     protected void AddTreeNode(int ParentMenuID, System.Web.UI.WebControls.TreeNode pNode)
     {

         DataTable dt = bind();

         DataView dv = new DataView(dt);

         //过滤parentId，得到当前节点的所有子节点

         dv.RowFilter = "ParentMenuID=" + ParentMenuID;
         //foreach (DataRow b in dt.Rows)
         //{
         //    ParentMenuID = Convert.ToInt32(b["ParentMenuID"].ToString());
         
         //}

         foreach (DataRowView drv in dv)
         {

             if (ParentMenuID == -1)
             {
                 System.Web.UI.WebControls.TreeNode tn1 = new System.Web.UI.WebControls.TreeNode();

                 tn1.Text = drv["MenuName"].ToString(); //节点上要显示的名称
                 tn1.Value = drv["MenuID"].ToString();
                 tn1.ImageUrl = drv["Icon"].ToString();

                 tn1.NavigateUrl = drv["MenuUrl"].ToString();  //点击节点名称，跳转到指定url页面

                 tvMenu1.Nodes.Add(tn1); //将根节点加入到TreeView中去

                 tn1.Expanded = true;
                 //tn1.SelectAction = TreeNodeSelectAction.Expand;
                 tn1.ShowCheckBox = false;




                 //递归调用

                 AddTreeNode(Int32.Parse(drv["MenuID"].ToString()), tn1);



             }

             else
             {

                 System.Web.UI.WebControls.TreeNode tn2 = new System.Web.UI.WebControls.TreeNode();

                 tn2.Text = drv["MenuName"].ToString();
                 tn2.Value = drv["MenuID"].ToString();

                 tn2.ImageUrl = drv["Icon"].ToString();
                 tn2.NavigateUrl = drv["MenuUrl"].ToString();

                 pNode.ChildNodes.Add(tn2);
                 tn2.ShowCheckBox = false;

                 tn2.Expanded = true;
                 //递归调用

                 AddTreeNode(Int32.Parse(drv["MenuID"].ToString()), tn2);


             }

         }

     }

    }

　　

posted on 2012-09-25 15:41  海航@  阅读(306)  评论(0)    收藏  举报

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