How to get JSON response from a 3.5 asmx web service

Question

I have the following method:

using System.Web.Services;
using System.Web.Script.Services;
using System.Web.Script.Serialization;
using Newtonsoft.Json;
using         


        

Answer 1

Sometimes we don't have access to make changes in WebService definition and sometimes we should not make changes in WebServices! so the best solution is set contentType="application/json; charset=..." in your request. just this!

For example you can use below code (if you are using jquery) instead of changing somethings in WebService:

$.ajax({
        type: "POST",
        url: '/ServiceName.asmx/WebMethodName',
        date: {},
        contentType: "application/json; charset=utf-8",
        success: function (data) {                
                // Some code;

        }
    });

Then you can use JSON.parse(data.d) to access json structure of your data.