There is no ViewData item of type 'IEnumerable' that has the key 'GradingId'

Question

Im trying to get a drop-down list to work for users who are being graded. Each user can have multiple gradings. So when i create a new grade i want a drop-down to specify

Answer 1

In Create get action you are not setting ViewBag.GradingId with the SelectList which is causing error in View:

public ActionResult Create()
{
        ViewBag.GradingId = new SelectList(db.Gradings, "GradingId", "CodeName");
        return View();
}