Josn

[hzwzfeng]

要想使用objAjax异步请求一个一般处理程序、返回一个josn对象、在一般处理程序生成这个josn对象（这个join对象是一个四层的树形菜单）

[anzhiqiang_touzi]

 protected void Page_Load(object sender, EventArgs e)
    {
        //把你的树构造出来

        TreeNode root = new TreeNode();
        root.NodeID = "0";
        root.NodeName = "Root";
        root.ChildNodes.Add(new TreeNode());

        //转换为json
        System.Web.Script.Serialization.JavaScriptSerializer js = new JavaScriptSerializer();
        string json = js.Serialize(root);
        //...
    }

    class TreeNode
    {
        string _NodeID;

        /// <summary>
        /// 编号
        /// </summary>
        public string NodeID
        {
            get { return _NodeID; }
            set { _NodeID = value; }
        }

        string _NodeName;

        /// <summary>
        /// 名称
        /// </summary>
        public string NodeName
        {
            get { return _NodeName; }
            set { _NodeName = value; }
        }

        List<TreeNode> _ChildNodes;

        /// <summary>
        /// 子节点
        /// </summary>
        public List<TreeNode> ChildNodes
        {
            get { return _ChildNode; }
            set { _ChildNode = value; }
        }
    }

[anzhiqiang_touzi]

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //把你的树构造出来
        TreeNode root = new TreeNode("0","Root");
        for (int i = 0; i < 5; i++)
        {
            TreeNode t = new TreeNode("Node" + i, "Root的孩子");
            root.ChildNodes.Add(t);
            for (int j = 0; j < 2; j++)
            {
                TreeNode t1 = new TreeNode("Node" + i + j, "Root的孙子");
                t.ChildNodes.Add(t1);
            }
        }


        //转换为json
        System.Web.Script.Serialization.JavaScriptSerializer js = new JavaScriptSerializer();
        string json = js.Serialize(root);
        //...
    }

    class TreeNode
    {
        public TreeNode(string NodeID,string NodeName)
        {
            this._NodeID = NodeID;
            this._NodeName = NodeName;
        }

        string _NodeID;

        /// <summary>
        /// 编号
        /// </summary>
        public string NodeID
        {
            get { return _NodeID; }
            set { _NodeID = value; }
        }

        string _NodeName;

        /// <summary>
        /// 名称
        /// </summary>
        public string NodeName
        {
            get { return _NodeName; }
            set { _NodeName = value; }
        }

        List<TreeNode> _ChildNodes;

        /// <summary>
        /// 子节点
        /// </summary>
        public List<TreeNode> ChildNodes
        {
            get
            {
                if (_ChildNodes == null)
                {
                    _ChildNodes = new List<TreeNode>();
                }
                return _ChildNodes;
            }
        }
    }
}