MVC validation on controller.

The following link has very useful information for validation of mvc .

Before in my knowledge, I do understand the validation of mvc has to be placed on the model layer. That gives some headache to me to find right entity in entities.

That a pieces of codes saves my headache. That's just brilliant. Thanks to who posted this post. http://www.asp.net/mvc/tutorials/creating-model-classes-with-the-entity-framework-cs



public ActionResult Add()
{
return View();
}

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Add(FormCollection form)
{
var movieToAdd = new Movie();

// Deserialize (Include white list!)
TryUpdateModel(movieToAdd, new string[] { "Title", "Director" }, form.ToValueProvider());

// Validate
if (String.IsNullOrEmpty(movieToAdd.Title))
ModelState.AddModelError("Title", "Title is required!");
if (String.IsNullOrEmpty(movieToAdd.Director))
ModelState.AddModelError("Director", "Director is required!");

// If valid, save movie to database
if (ModelState.IsValid)
{
_db.AddToMovieSet(movieToAdd);
_db.SaveChanges();
return RedirectToAction("Index");
}

// Otherwise, reshow form
return View(movieToAdd);
}