dont Post JSON array to mvc controller - json

Question

I'm trying to post JSON to a mvc controller through AJAX. I use this code but it does not do the post.
$(document).ready(function(){
$(".btn-success").click(function(e){
var urData = { City: 'Moscow', Age: 25 };
$.ajax({
url: "/Category/Create/",
type: "POST",
dataType: "json",
traditional: true,
contentType : "application/json",
data: urData,
success: function(maindta) {
alert(maindta);
},
error: function(jqXHR, textStatus){
}
});
e.preventDefault(); //STOP default action
});
});
This is controller action
[HttpPost]
public virtual JsonResult Create(List<object> urData){
}

Answer 1

Your posting back an object with 2 properties so you need a model with those 2 properties
public class MyModel
{
public string City { get; set; }
public int Age { get; set; }
}
and the method needs to be changed to
public JsonResult Create(MyModel model)
{
.... // model will be populated with the values you sent
return Json(...);`
}
and you need to remove the following options from the ajax method
contentType : "application/json",
traditional: true,
Alternatively, you method can be
public JsonResult Create(string city, int age)
but you lose the benefits of model validation
Side note: Always use the Url.Action() method to ensure your url's are correctly generated
url: '#Url.Action("Create", "Category")',