Question

I have code that is part of an $.ajax call to MVC. Two functions that I hope will get executed based on a true or false from my controller.

success: function () {
    $('#mark').html('<span style='color: Green;'>&nbsp;&nbsp;Correct</span>');
},
error: function () {
    $('#mark').html('<span style='color: Red;'>&nbsp;&nbsp;Incorrect</span>')
}

But what should I return from the controller so I can call either the success or error? I didn’t try Ajax before so can I just return

return(true) or 
return(false)

In which case what would be the datatype I use for the return value in MVC?

Answer 1

I prefer this technique over return Content(“true”)

return Json(true);

This way, you will get a boolean passed to your callback:

success: function (response) {
  if (response) {
    // success code here
  } else {
    // error code here
  }
}