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

Json() is a method on the base controller which returns a JsonResult. You need to do the serialization yourself.

return new JavaScriptSerializer().Serialize(new { errMsg = "test" });

You will need to include using System.Web.Script.Serialization.

Answer 2

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
};

Answer 3

For me this worked (mind the change of the return type to Object):

public Object Test()
{
      return new { errMsg = "test" };
}