Why does JsonResult produce 500 internal server error?

Question

I am trying to retrieve a value from my Microsoft SQL Server database. It is a nullable \"bit\".

The code to retrieve

[HttpGet]
public JsonResult Wi         


        

Answer 1

The problem is most likely because ASP.NET MVC does not allow JSON requests using GET by default. You can add JsonRequestBehavior.AllowGet as a second parameter to your Json call:

return Json("true", JsonRequestBehavior.AllowGet);

If not, can you provide a error message?