AJAX post to asp.net MVC controller method not working - ajax

Question

I have this method in my controller:
[HttpPost]
public ActionResult Create(StatusMessage statusMessage, int foreignKey, int statusMessageType)
{
//Do something
}
This is how my StatusMessage model looks like:
public abstract class StatusMessage
{
[Key]
public int Id { get; set; }
/// <summary>
/// Message
/// </summary>
/// [Required]
public string Description { get; set; }
public DateTime CreationDate { get; set; }
public int UseraccountId { get; set; }
public virtual Useraccount Useraccount { get; set; }
}
And I'd like to send a post via jquery ajax to my controller:
function sendForm(message, foreignKey, statusMessageType, target) {
var statusMessage = {
Description: "This is a test message"
};
$.ajax({
url: target,
type: "POST",
contentType: 'application/json',
data: JSON.stringify({
statusMessage: statusMessage,
foreignKey: foreignKey,
statusMessageType: statusMessageType
}),
success: ajaxOnSuccess,
error: function (jqXHR, exception) {
alert(exception);
}
});
}
But the POST isn't sent correctly.
Through testing I figured already out that the problem is the StatusMessage class. If I replace it by a string, everything is working fine.

Answer 1

Why you have defined your class as abstract, controller won't be able to create its instance
Define you class as
public class StatusMessage
for info http://www.codeproject.com/Articles/6118/All-about-abstract-classes

Answer 2

Your ajax post is not working because StatusMessage is an abstract class and you (or the controller) cannot create an instance of it. You should either make it a concrete class or derive another class from it.