Cannot implicitly convert type 'System.Data.EntityState' to 'System.Data.Entity.EntityState'. An explicit conversion exists (are you missing a cast?)

Question

I am getting this error in asp.net when using Entity Framework : \"Cannot implicitly convert type System.Data.EntityState to System.Data.Entity.EntityStat

Answer 1

When you are using EF 6 or moving from EF 5 to EF 6, you should use System.Data.Entity.EntityState instead of System.Data.EntityState. This error happens when your project has reference to EF6 but you have code for EF5.

Also, check this link: When upgrading from EF5 to EF6 should I replace System.Data.Objects?.

Answer 2

This happened to me in a generated controller. It works for me after removing using System.Data.EntityState and adding using Microsoft.EntityFrameworkCore

Answer 3

Your code must be like this:

if (ModelState.IsValid)
{
    db.Entry(movie).State = System.Data.Entity.EntityState.Modified;
    db.SaveChanges();
    return RedirectToAction("Index");
}
return View(movie);