CODEWITHSUNDEEP
c#jsonasp.net-mvc.net-coreasp.net-core-mvc
George
George

Reputation: 197

Property 'JsonResult.SerializerSettings' must be an instance of type 'System.Text.Json.JsonSerializerOptions'

I am developing a page that shows the webgrid of all values of Leave Type Option (which is a model containing id, LeaveType and status). In my controller, I have written something below.

After I run the code, I got the runtime error

InvalidOperationException: Property 'JsonResult.SerializerSettings' must be an instance of type 'System.Text.Json.JsonSerializerOptions'

I tried to google it but I don't understand this issue and I would like to seek advice on how to solve this.

Thank you.

public class OptLeaveTypeController : Controller
{
        private readonly theManagerContext _context;

        public OptLeaveTypeController(theManagerContext context)
        {
            _context = context;
        }

        public IActionResult Index()
        {
            return View();
        }

        public IActionResult GetLeaveTypes()
        {         
                var leaveTypes = _context.OptLeaveType.OrderBy(a => a.LeaveTypeId).ToList();
                return Json(new { data = leaveTypes }, System.Web.Mvc.JsonRequestBehavior.AllowGet);
        }
}

Upvotes: 11

Views: 18305

Answers (1)

Ashiquzzaman
Ashiquzzaman

Reputation: 5284

1) .NET CORE MVC:-

    public IActionResult GetLeaveTypes()
    {         
            var leaveTypes = _context.OptLeaveType.OrderBy(a => a.LeaveTypeId).ToList();
            return Json(new { data = leaveTypes });
    }

OR

    public IActionResult GetLeaveTypes()
    {         
            var leaveTypes = _context.OptLeaveType.OrderBy(a => a.LeaveTypeId).ToList();
            return new JsonResult(new { data = leaveTypes });
    }

2) .NET MVC:-

    public ActionResult GetLeaveTypes()
    {         
            var leaveTypes = _context.OptLeaveType.OrderBy(a => a.LeaveTypeId).ToList();
            return Json(new { data = leaveTypes }, System.Web.Mvc.JsonRequestBehavior.AllowGet);
    }

Upvotes: 8

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