Json object sent from client side jquery to server side

Hi all,

i am trying to sent json object from client side jquery to server side using asp.net c#
i have done all the respected codes given below.
But i unable to get the output instead of that i got the below message,
please let me know what is the problem occur in my code.

---------------------------
Message from webpage
---------------------------
Success :No Data
---------------------------
OK   
---------------------------

please find my below code:

My json object Code:

<script type="text/javascript">
	
$(function () 
{
$('#jstree2').jstree({'plugins':["wholerow","checkbox"], 'core' : 
{

type: "POST",
data: "{}",

contentType: "application/json; charset=utf-8",
	
dataType: "json",

'data' : [
       { "id" : "ajson1", "parent" : "#", "text" : "Simple"},
       { "id" : "ajson2", "parent" : "#", "text" : "Root" },

    ]
}
}
);});

</script>

My json object sent to server side code:

<script type="text/javascript">
  $(function () {
  
    $("#Button1").on('click', function (e) {

 //  var obj=JSON.stringify(jQuery('#jstree2').serializeArray());
   //var obj=JSON.stringify(jQuery('#jstree2').serializeArray()); // store json string
   var obj=JSON.parse(JSON.stringify(jQuery('#jstree2').serializeArray())) // store json object
    $.ajax({
        type: "POST",
        //url: "Default3.aspx/login",
        url: "Handler.ashx",
        data: obj,
        contentType: "application/json; charset=UTF-8",
       // dataType: "json",

        beforSend: function () {
            $(this).attr("disabled", "true");
            $(this).after(waitObj);
        },

        success: function (msg) {
            // Replace the div's content with the page method's return.

   console.log(msg);
            alert("Success :" + msg);
        },
        error: function (msg) {
         alert(msg);
        }
       
    });
});
});
	
</script>

My html code:

   <div id="jstree2" style="margin-top:2em;">

   </div>
<input id="Button1" type="button" value="button"/>

My server side code:

<%@ WebHandler Language="C#" Class="Handler" %>

using System;
using System.Web;
using System.Web.Script.Serialization;
using System.IO;

public class Handler : IHttpHandler {
    
    public void ProcessRequest (HttpContext context) {
        context.Response.ContentType = "text/plain";
        try
        {
            string strJson = new StreamReader(context.Request.InputStream).ReadToEnd();

            //deserialize the object
            userInfo objUsr = Deserialize<userInfo>(strJson);
            if (objUsr != null)
            {
                string idname = objUsr.id;
                string parentname = objUsr.parent;
                string textname = objUsr.text;
                context.Response.Write(string.Format("id :{0} , parent={1}, text={2}", idname, parentname, textname));
            }
            else
            {
                context.Response.Write("No Data");
            }
        }
        catch (Exception ex)
        {
            context.Response.Write("Error :" + ex.Message);
        }
    }
 
    public bool IsReusable {
        get {
            return false;
        }
    }
    // we create a userinfo class to hold the JSON value
    public class userInfo
    {
        public string id { get; set; }
        public string parent { get; set; }
        public string text { get; set; }
       
    }


    // Converts the specified JSON string to an object of type T
    public T Deserialize<T>(string context)
    {
        string obj = context;

        //cast to specified objectType
        var jsonData = (T)new JavaScriptSerializer().Deserialize<T>(obj);
        return jsonData;
    }

}