How can My Asp.Net C# class return a json format

Question

How would like a class that will return a json format.

This method work Great in the controller but when I want to put in a Class, the Json object don\'t seem to exi

Answer 1

return Json(new { errMsg = "test"});

is a convenience method on Controller that is equivalent to

return new JsonResult(){
      Data = new { errMsg = "test"},
      JsonRequestBehavior = JsonRequestBehavior.DenyGet
};