What to return from ASP.NET MVC action to allow jQuery ajax success event to fire?

Answer 1

I believe the problem is that you're not returning anything in the JsonResult. Try

return this.Json(string.empty);

and see if that works. I think that the problem is that you're returning nothing to the jQuery call rather than an empty JSON set.

{}

Answer 2

Returning an empty result may also be useful

return new EmptyResult();