Could not Update data using asp mvc Entity-Framework

Question

As a beginner with ASP .net MVC i m trying to update database using Entity Framework but the id is always null what it make the modelstate always non Valide this is Code of the Controller

You need to include the code in the question, not an image of it — user3559349
– user3559349, Commented Feb 7, 2016 at 0:47

CodeNotFound · Accepted Answer · 2016-02-06 17:56:01Z

1

Your Id is equal to null because the model binder doesn't find a value from your posted data.

To solve this you must add the Id as a hidden field into your view. In your Edit.cshtml just add the following line :

@Html.HiddenFor(model => model.Id)

answered Feb 6, 2016 at 17:56

CodeNotFound

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1 Comment

mejdi Radhouani Over a year ago

It is always null :/

Rafa · Accepted Answer · 2016-04-08 17:41:16Z

0

Try it like this ->

public ActionResult Edit([Bind(Include = "Field1,Field2,Field3...")] Etudiant et)
    {
        if (ModelState.IsValid)
        {
            db.Entry(et).State = EntityState.Modified;

            db.SaveChanges();
        }
        return RedirectToAction("Index");
    }

answered Apr 8, 2016 at 17:41

Rafa

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