jiekk

function callServer(type, url, isAsync, user, passWord) {
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    //Open方法中包含了5个参数，前三个是必要的，后两个是可选的(在服务器需要进行身份验证时提供)
    //数据传送方式即GET或POST,服务网页的URL,是否异步请求(缺省为True，即异步执行。False，为同步执行),用户名(可省略),用户口令(可省略)
    xmlHttp.Open(type, url, isAsync, user, passWord);
    //如果Open方法定义为POST，可以定义表单方式上传
    if (type.toUpperCase == "POST") {
        xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
        //xmlhttp.Send(strParamString);
    }
    if (isAsync) {//异步方法
        xmlHttp.onreadystatechange = update;
        xmlHttp.send();
    }
    else {//同步方法
        xmlHttp.send();
        if (xmlHttp.status == 200) {
            //responseText：将返回消息作为文本字符串；
            //responseBody：将返回消息作为HTML文档内容；
            //responseXML：将返回消息视为XML文档，在服务器响应消息中含有XML数据时使用；
            //responseStream：将返回消息视为Stream对象
            var ret=xmlHttp.responseText;//这是同步请求回来的数据
        }
    }
}
//异步回调函数
function update() {
    if (xmlHttp.readyState == 4) {
        var response = xmlHttp.responseText;//这就是异步请求回来的数据
    }
}

    protected void Page_Load(object sender, EventArgs e)
        {
            string ret = "This is Microsoft.XMLHTTP";//这里就是你所要组织返回来的数据
            Response.Write(ret);
            Response.End();
        }

var url = "WebServer.aspx";//可以附带参数，然后在后台获取参数
callServer("post", url, true, "", "");

        /// <summary>
        /// 邦定根节点
        /// </summary>
        public void BindTreeView(DataTable dt)
        {
            DataTable aldt = GetTreeList("").Tables[0];
            //菜单状态
            tv.Nodes.Clear(); // 清空树
            if (Request.QueryString["Type"] == "User")
            {
                TreeNode rootnode = new TreeNode();
                rootnode.Text = "--所有部门--";
                rootnode.Value = "";
                rootnode.ImageUrl = "../img/0_Person.gif";
                rootnode.NavigateUrl = "../User/AdminUser.aspx";
                rootnode.Target = "mainFrame";
                tv.Nodes.Add(rootnode);
            }
            foreach (DataRow r in dt.Rows)
            {
                string nodeid = r["dept_code"].ToString();
                string text = r["dept_name"].ToString();
                this.tv.Font.Name = "宋体";
                this.tv.Font.Size = FontUnit.Parse("9");
                //权限控制菜单
                TreeNode rootnode = new TreeNode();
                rootnode.Text = text;
                rootnode.Value = nodeid;
                rootnode.ImageUrl = "../img/0_Person.gif";
                if (Request.QueryString["Type"] == "User")
                {
                    rootnode.NavigateUrl = "../User/AdminUser.aspx?dept_code=" + nodeid;
                }
                else
                {
                    rootnode.NavigateUrl = "DeptRight.aspx?dept_code=" + nodeid;
                }
                rootnode.Target = "mainFrame";
                tv.Nodes.Add(rootnode);
                string sonparentid = nodeid;
                CreateNode(sonparentid, rootnode, aldt);
            }

        }
        /// <summary>
        /// 邦定任意节点
        /// </summary> 
        public void CreateNode(string parentid, TreeNode parentnode, DataTable dt)
        {
            DataRow[] drs = dt.Select("pare_code= '" + parentid + "'");//选出所有子节点            
            foreach (DataRow r in drs)
            {
                string nodeid = r["dept_code"].ToString();
                string text = r["dept_name"].ToString();


                //treeview set
                this.tv.Font.Name = "宋体";
                this.tv.Font.Size = FontUnit.Parse("9");

                TreeNode node = new TreeNode();
                node.Text = text;
                node.Value = nodeid;
                node.ImageUrl = "../img/0_Person.gif";
                if (Request.QueryString["Type"] == "User")
                {
                    node.NavigateUrl = "../User/AdminUser.aspx?dept_code=" + nodeid;
                }
                else
                {
                    node.NavigateUrl = "DeptRight.aspx?dept_code=" + nodeid;
                }
                node.Target = "mainFrame";
                //node.Expanded=true;
                //node.SelectAction = TreeNodeSelectAction.Expand; //和ASP.NET1.1中TREEVIEW的SelectExpands属性等效
                string sonparentid = nodeid;// or =location

                if (parentnode == null)
                {
                    tv.Nodes.Clear();
                    parentnode = new TreeNode();
                    tv.Nodes.Add(parentnode);
                }
                parentnode.ChildNodes.Add(node);
                CreateNode(sonparentid, node, dt);
            }
        }