ASP.NET - Passing JSON from jQuery to ASHX

Question

I\'m trying to pass JSON from jQuery to a .ASHX file. Example of the jQuery below:

$.ajax({
      type: \"POST\",
      url: \"/test.ashx\",
      data: \"{\         


        

Answer 1

The following solution worked for me:

Client Side:

        $.ajax({
            type: "POST",
            url: "handler.ashx",
            data: { firstName: 'stack', lastName: 'overflow' },
            // DO NOT SET CONTENT TYPE to json
            // contentType: "application/json; charset=utf-8", 
            // DataType needs to stay, otherwise the response object
            // will be treated as a single string
            dataType: "json",
            success: function (response) {
                alert(response.d);
            }
        });

Server Side .ashx

    using System;
    using System.Web;
    using Newtonsoft.Json;

    public class Handler : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";

            string myName = context.Request.Form["firstName"];

            // simulate Microsoft XSS protection
            var wrapper = new { d = myName };
            context.Response.Write(JsonConvert.SerializeObject(wrapper));
        }

        public bool IsReusable
        {
           get
           {
                return false;
           }
        }
    }

Answer 2

This works for calling web services. Not sure about .ASHX

$.ajax({ 
    type: "POST", 
    url: "/test.asmx/SomeWebMethodName", 
    data: {'file':'dave', 'type':'ward'}, 
    contentType: "application/json; charset=utf-8",   
    dataType: "json",
    success: function(msg) {
      $('#Status').html(msg.d);
    },
    error: function(xhr, status, error) {
        var err = eval("(" + xhr.responseText + ")");
        alert('Error: ' + err.Message);
    }
}); 



[WebMethod]
public string SomeWebMethodName(string file, string type)
{
    // do something
    return "some status message";
}