equivalent of push from javascript to c#

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Web.Services;
using System.Collections.Generic;
using System.Data.SqlClient;
using WebApplication2.connection;


namespace WebApplication2
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {


        }
        [WebMethod]
        public static List GetAutoCompleteData(string username)
        {


            PBDataContext context = new PBDataContext();
            //List result = new List();
            List data = new List();
           


           String strConnString = System.Configuration.ConfigurationManager.ConnectionStrings["PBConnectionString"].ConnectionString;
            SqlConnection con = new SqlConnection(strConnString);
           






            using (con)
            {
                using (SqlCommand cmd = new SqlCommand("select i.Item_Name,i.Item_Idx from Dim_Competitor_Item i (nolock)" +
                                                       "where i.Item_Name like '%'+@SearchText+'%' ", con))
                {
                    con.Open();
                    cmd.Parameters.AddWithValue("@SearchText", username);
                    SqlDataReader dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        MyClass myClass = new MyClass() { text = dr["Item_Name"].ToString(), value = Convert.ToInt64(dr["Item_Idx"]) };          


   
                        data.Add(myClass);
               Listdata = JsonConvert.DeserializeObject >(myclass);
                       
                    }
                    return data;
                   
                }
            }
           
        }
        public class MyClass
        {
            public string text { get; set; }
            public long value { get; set; } // assuming value is an integer
        }


       


    }
}

I didn't understand you were using this in ASP.NET to return JSON to a webpage (figured you just needed the same solution in C#). Do note that the return value of your method is different from the new list.

You might want to take a look at JSON.NET which can help you with creating/parsing JSON.

hello sir but the problem is that i cant return my data

please see my whole snippet:

Try this:

  public class MyClass
  {
    public string Text { get; set; }
    public int Value { get; set; } // assuming value is an integer
  }

  List data = new List();

  MyClass myClass = new MyClass() { Text = "text", Value = 1 };
  data.Add(myClass);

Use something like this:

  List data = new List();
  data.Add(" your string here ");