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Cannot retrieve data from JsonResult in C# and ASP.NET MVC

I'm working on an ASP.NET MVC C# app and need to recover an object (modelview) when a specific button is clicked in the view. I managed to send the value to the JsonResult controller but I don't get back anything from it.
This is the code from the button in my razor view:
$("#btn-buscar").click(function (e) {
$.ajax({
type: "POST",
url: '#Url.Action(actionName: "BISSS_Modificacion", controllerName: "Home")',
datatype: "Json",
//contentType: "application/json; charset=utf-8",
data: { ISSS: $("#idISSSBuscar").val()},
success: function (data) {
alert(data);
alert("todo bien " + data.Nombres);
}
});
});
and this is the JsonResult controller, it works since it retrieves the info
public JsonResult BISSS_Modificacion(string ISSS)
{
Entity BusquedaEmpleado = new Entity();
// here I retrieve the info from a Web API
if (respuestaBusqueda.respuesta)
{
BusquedaEmpleado.NombreM = respuestaBusqueda.nombres;
BusquedaEmpleado.ApellidoM = respuestaBusqueda.apellidos;
BusquedaEmpleado.DUIM = respuestaBusqueda.dui;
BusquedaEmpleado.ISSSM = respuestaBusqueda.numero_isss;
BusquedaEmpleado.CargoM = respuestaBusqueda.cargo_participante;
BusquedaEmpleado.SexoM = respuestaBusqueda.genero;
BusquedaEmpleado.NivelM = respuestaBusqueda.nivel_puesto;
BusquedaEmpleado.grupoM = Convert.ToInt32(respuestaBusqueda.grupo);
return Json(new { BusquedaEmpleado }, JsonRequestBehavior.AllowGet);
}
}
But when it comes to show the object in an alert window - the first alert in the click button code - this is what I get:
and if I what to show a specific value - the second alert in the click button code - this is what I get:
and if I use console.log to show the data, this is what I get:
Could you please tell me what am I doing wrong?
If I use alert(JSON.stringify(data)), I get this, which is the info I need so it looks like I getting the proper info (there are some null values but its ok):
and as you can see the prop for Apellido is ApellidoM but if I want to show that value in an alert window still got undefined -alert("todo bien " + JSON.stringify(data.ApellidoM));

Based on the result of the json stringify you posted, it looks like you just need to use the names of the properties that are actually on the JSON object.
alert("todo bien " + data.NombreM); // todo bien JOSE ANGER

How do I redirect to a new page from inside a class called by an ajax command?

I'm working with an asp.net MVC project. A coworker was new to MVC and handled all of the populating of data and click actions by using ajax calls. I know this isn't how MVC should be set up, but it's what I'm stuck with. I'm just trying to work around that the best I can. Anyway, within the method the ajax goes to, I need to redirect the user to a new page. How do I do that?
I tried Response.Redirect, but I got an error saying it didn't exist. I tried to add a using class, but couldn't it to work.
I found System.Diagnostics.Process.Start, but it opens in a new browser tab. Could there possibly be a way to open in the same tab?
So here's the ajax call. This is triggered in a javascript function when the user clicks a button:
$.ajax({
contentType: "application/json",
dataType: "json",
type: "post",
url: "/api/WoApi/PostWoApprGen/" + vUsr,
data: JSON.stringify(invObj),
success: function (res)
{
if (res)
{
var inv = $('#DivInv');
inv.html(res);
output = $('#TmpMsg');
output.html("");
opStatMsg("success", "rptGenWin");
}
else
{
opStatMsg("error", "rptGenWin");
}
}
});
That goes to a class in the controller directory, filename WoApiController.cs:
public string PostWoInv([FromBody] Koorsen.OpenAccess.WrkOrdTemp obj)
{
var currentUser = ClsUtility.GetCurrentUser();
if (currentUser == 0)
{
rep.UpdateWorkOrderStatusInvoiced(obj.WoTempId, currentUser, obj);
}
else
{
System.Diagnostics.Process.Start("~Admin/Login");
}
.............
.............

In your success callback, simply do
location.href = 'Home/Index';
or, preferably, using Razor and a method called Index in HomeController
location.href = '#Url.Action("Index", "Home")';

Passing a Var and List to Controller via Ajax

I have a Text Box and a Select Options Multiple, i store all the selected items using knockout selectedOptions in a viewModel.
If I try to pass the captured information to my Controller using ajax I'm unable to recieve my MetricsChosenModel.
var MetricsChosenModel= window.vm.MetricsChosenModel();
var ApplicationsNameValue = $.trim($("#add-Applications").val());
if (ApplicationsNameValue.length <= 0) {
$("#text-add-Applications").popover('show');
}
$.ajax({
url: '/Admin/AddApplications',
type: "POST",
dataType: "JSON",
data: { ApplicationsName: ApplicationsNameValue, MetricsChosenModel: MetricsChosenModel },
success: function (returndata) {
if (returndata == true) {
}
else {
}
},
error: function () {
}
});
My Controller
public ActionResult AddApplications(string ApplicationsName,List<string> MetricsChosenModel)
{
//Code here
return View();
}
My MetricsChosenModel stores data in following format
MetricsChosenModel[0] => 5
MetricsChosenModel [1] => 6
why am i not able to recieve the list value of MetricsChosenModel , I'm able to recieve the ApplicationsName though,
Also it would be great if some one can explain, how am i wrong here,
Thanks,

Without knowing what your routing looks like, it's hard to pinpoint the exact source of the problem. If I had to guess, I'd say that you're getting the ApplicationsName value through the URL (routing or querystring parameter). If that's the case, you could probably add the [FromBody] attribute to the MetricsChosenModel. Note, however, that you're only allowed one FromBodyAttribute per method signature. If you need more variables, a simple solution to this problem is to create a model which contains each of the properties you're looking to receive in your controller action.
Hope that helps!

I've run into this problem myself with ASP.NET MVC: sending a model with some fields and one or more arrays up to a controller would not properly get the array contents into the C# model. The following change to the ajax call fixes it for me every time:
$.ajax({
url: '/Admin/AddApplications',
type: "POST",
contentType: 'application/json; charset=utf-8', // ADD THIS
dataType: "JSON",
data: JSON.stringify({ ApplicationsName: ApplicationsNameValue, MetricsChosenModel: MetricsChosenModel }), // Also added JSON.stringify
success: function (returndata) {
if (returndata == true) {
}
else {
}
},
error: function () {
}
});
The 'content-type' and 'JSON.stringify' help MVC with converting the model. Please let me know if that helped for you too :)

AJAX error in ASP.NET c#

I am very new to Ajax and ASP.NET MVC. I have a function, that returns back to AJAX and I need to handle the error situation. When everything works fine, then the code is okay. My question is how to handle the error part. Here is what I have:
To return success I have:
var data = new { success = false };
return Json(data, JsonRequestBehavior.AllowGet);
And I need to know what to return when there is an exception or error??
This is my query:
function DoMailPDF() {
$("#submitMail").attr("disabled", true);
var personid = $("#personid").val();
var unitid = $("#unitid").val();
var url = "#(Url.Action("SendEmail", "Report"))";
$.ajax({
url: url,
data: { person: personid , unit:unitid},
success: function () {
// $('input[name=MailSent]').attr('checked', true);
$("#submitMail").removeAttr("disabled");
alert("Email sent!");
},
error: function () {
alert("Email not sent!");
}
});
}
It never comes to the error function. How do I make it go to the error? Any tips and suggestions are most welcome.

You can access your json response object by writing:
$.ajax({
url: url,
data: { person: personid , unit:unitid},
dataType: 'json',
success: function (response) {
if (response.success == false) {
// Error handling
} else {
// Success handling
}
},
error: function () {
alert("Email not sent!");
}
});

As Nick Bork already explained in a comment, the error/success status of a response is determined by the Http status code that is sent down in the header. You can still go the suggested way and inspect the response object and the success property but it is clearly not the proper way when you already have a more powerful and long proven mechanism (the HTTP protocol itself).
.NET will use HTTP 200 (OK) when everything goes according to the code but you can change this behaviour in the Controller by accessing the Reponse object like this, for example:
Response.StatusCode = 500; // or any of the other HTTP "failure" status codes
Any status code in the 4xx or 5xx category will trigger the error() handler specified in the $.ajax(...) call. From there you can of course also inspect the proper status code, the response details and every properties of the XHR object to provide a more meaningful user experience.
HTTP status codes are pretty much set in stone and are not likely to change, that's why they are in my opinion definitely preferrable to a custom made solution...
PS: For a list of HTTP status codes, wikipedia is your friend.

JQuery AJAX, Error Status code: 200, Status Text: parserorro | OK

Here is a funny situation that I'm in.
I'm developing an ASP.Net web site using VS 2008 and .Net Framework 3.5, and I want to use jquery ajax in a test page, the code looks like this:
C# Method
[WebMethod]
public static string test()
{
return "Server Response" ;
}
$(document).ready(function() {
$("#myDiv").click(function() {
$.ajax({
type: "POST",
url: "AjaxTest.aspx/test",
data: "",
contentType: "application/json;charset=utf-8",
dataType: "json",
success: function(msg) {
// Replace the div's content with the page
// method's return.
alert(msg.d);
},
error: function(result){
alert("error occured. Status:" + result.status
+ ' --Status Text:' + result.statusText
+ " --Error Result:" + result);
}
});
});
});
So When I use Jquery 1.4.4 like this :
I get : Status 200; Status Text: OK
When I use Jquery 1.5 I get: Status 200; Status Text: Parsererror
So I created a new WebSite in Visual Studio, copy and pased the code there, and it works fine !!!! I can't figure out what causes the problem.
Also I have used methods with parameter, and setting data:"{}", and removing data completely, but nothing seems to work.
I don't know if has to do anything with the DevExpress components that I'm using or not.
I also found a good answer which was working with complete method like this :
complete: function(xhr, status) {
if (status === 'error' || !xhr.responseText) {
alert("Error");
}
else {
var data = xhr.responseText;
alert(data);
//...
}
}
But I don't know if it will work fine or there might be some other problem with this method too. I also don't know how to access response data from here.
But my main concern is finding out what is causing the problem in my website.
UPDATE: Well today in Google Chrome console I noticed some syntax problems with JQuery 1.5
they are as below:
Uncaught SyntaxError: Unexpected token <
jQuery.jQuery.extend.globalEvaljquery.js:593
jQuery.ajaxSetup.converters.text scriptjquery.js:7175
ajaxConvertjquery.js:7074
donejquery.js:6622
jQuery.ajaxTransport.send.callbackjquery.js:7441

The issue isn't so easily solved with fiddler, although it's a great tool.
The issue I think is described here, and for now use the complete event.
there are some issues that will be resolved in jQuery 1.5.1
See:
jQuery returning "parsererror" for ajax request
as it was posted there,
complete: function (xhr, status) {
if (status == 'error' || !xhr.responseText) {
handleError();
}
else {
var data = xhr.responseText;
//...
}
}
Although the interesting thing is - this works for me with jsonp data when I query amazon's service (code amazon was based on some other posting on the net I don't have the ref too) ala:
//resp is simple a placeholder for autocomplete's response which I will need to call on a global scope.
var resp;
var filter;
$(document).ready(function () {
//http://completion.amazon.com/search/complete?method=completion&q=halo&search-alias=videogames&mkt=1&x=updateISSCompletion&noCacheIE=1295031912518
filter = $("#productFilter").autocomplete({
source: function (request, response) {
resp = response;
$.ajax({
url: "http://completion.amazon.com/search/complete",
type: "GET",
cache: false,
dataType: "jsonp",
success: function (data) {
//data[1] contains an array of the elements returned from the service.
//use .map to enumerate through them.
response($.map(data[1], function (item) {
//debugger;
return { label: item, value: item, id: item}
}))
},
data: {
q: request.term,
"search-alias": "videogames",
mkt: "1",
callback: '?'
}
});
},
minLength: 2,
select: function (event, ui) {
//$('#browseNode option:first').attr('selected', 'selected');
alert('selected');
},
open: function () {
$(this).removeClass("ui-corner-all").addClass("ui-corner-top");
},
close: function () {
$(this).removeClass("ui-corner-top").addClass("ui-corner-all");
}
});
});
//this is the method that will be called by the jsonp request
function updateISSCompletion() {
alert('updateiss');
resp(completion[1]);
}

You should use Fiddler - the great web debugging proxy. With its help you can watch for all communication between server and client

Not sure if this will help, but the ajax() API specifies that they have changed the return object for the success() callback function. This is from the jQuery API
As of jQuery 1.5, the success callback function receives a "jqXHR" object (in jQuery 1.4, it received the XMLHttpRequest object). However, since JSONP and cross-domain GET requests do not use XHR, in those cases the jqXHR and textStatus parameters passed to the success callback are undefined.
You can find it here if it helps at all...
jQuery $ajax API
I am running into a similar problem, and am unable to pull the JSON object from any callback functions.

I had this problem too but in PHP When i put in 'remote.php':
`echo $msg`'
problem occurs. When I use json_encode():
echo json_encode($msg);
then everything works.
This is strange, because I get response from server with status 'OK', so then function 'success' should work not 'error'. In 'success' i have only
success: function(res){ console.log(res);}

In my case (when using "jquery 1.9.1"), adding dataType: "json" solved the "parsererror" problem (I didn't specify dataType before and that problem occurred).

I had a similar problem.
I called in AJAX a REST service with POST method and got back :
arguments[0] = status 200 (OK) | arguments[1] = "parseerror" | arguments[2] = "Invalid JSON :"
My server method returned a "void" value. To resolve the problem, I replaced it by a Boolean value for example.