how to ignore default value(string) in the output of Json webservice

Question

I need to neglect the default value(*string *) in the output which is displayed when executing the webservice JSON.

Here is my code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Script.Serialization;
using System.Web.Script.Services;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.ComponentModel;


namespace Webservice
{

    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
    // [System.Web.Script.Services.ScriptService]
    public class Service1 : System.Web.Services.WebService
    {
        public Service1()
        {
            //Uncomment the following line if using designed components 
            //InitializeComponent(); 
        }
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        //public string GetEmployees(string SearchTerm) 
        public string GetEmployees()
        {
            System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();

            SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["NSConstr"].ToString());
            SqlCommand cmd = new SqlCommand();
            cmd.CommandText = "SELECT *  FROM Contact e ";
            DataSet ds = new DataSet();
            DataTable dt = new DataTable();
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            da.SelectCommand.Connection = con;
            da.Fill(dt);
            con.Close();

            List&lt;Dictionary&lt;string, object&gt;&gt; rows = new List&lt;Dictionary&lt;string, object&gt;&gt;();
            Dictionary&lt;string, object&gt; row = null;
            foreach (DataRow rs in dt.Rows)
            {
                row = new Dictionary&lt;string, object&gt;();
                foreach (DataColumn col in dt.Columns)
                {
                    row.Add(col.ColumnName, rs[col]);
                }
                rows.Add(row);
            }

            return "{ \"Cargo\": " + serializer.Serialize(rows) + "}";
        }     

        public string errmsg(Exception ex)
        {
            return "[['ERROR','" + ex.Message + "']]";
        }
    }
}

Output is;

<string>
{ "Cargo": [{"Id":1,"FirstName":"devi","LastName":"priya ","Contactno":"965577796 "},{"Id":2,"FirstName":"arun","LastName":"kumar","Contactno":"9944142109"},{"Id":3,"FirstName":"karu","LastName":"ronald","Contactno":"8883205008"}]}
</string>

But the actual output i need is;

  { "Cargo": [{"Id":1,"FirstName":"devi","LastName":"priya ","Contactno":"965577796 "},{"Id":2,"FirstName":"arun","LastName":"kumar","Contactno":"9944142109"},{"Id":3,"FirstName":"karu","LastName":"ronald","Contactno":"8883205008"}]}

In the above output i dont want to see the string /string is there is a way to omit that if so please suggest me.

Thanks in advance

viki · Answer 1 · 2014-04-03T13:07:53.523

0

Try replacing return "{ \"Cargo\": " + serializer.Serialize(rows) + "}"; with return serializer.Serialize(new { Cargo = rows });

edited Apr 03 '14 at 13:07

answered Apr 03 '14 at 13:02

viki

1,178
1
17
22

I tried this but still string and /string is displaying. – Appdev Apr 03 '14 at 13:15
Are you using jQuery or javascript function to consume this service? If so, can u pls add that code too in ur question. – viki Apr 04 '14 at 04:45

score 0 · Answer 2 · edited May 23 '17 at 10:31

0

Your question can be found here: ResponseFormat.Json returns xml

And try to use this http://www.nuget.org/packages/Newtonsoft.Json/ it can be very helpful to deal with JSON.

Good Luck.

edited May 23 '17 at 10:31

Community

1
1

answered Apr 03 '14 at 14:04

Fernando Moreira

785
4
16

how to ignore default value(string) in the output of Json webservice

2 Answers2