Model is null when form submitted

Question

When I hit submit, the file parameter is null.

public ActionResult Create()
{
  return View(new FileViewModel());
}

[HttpPost]    
[InitializeB         


        

Answer 1

This solved my issue as well. It was a name that I was using that was similar to the model, which was similar to the variable I assigned the posted model too. once I sorted out the field name all worked as expected.

Of course the error was not helpful in pointing this out.

Answer 2

It's naming conflict and binder trying to bind your File property to FileViewModel object with file name, that's why you get null. POST names are case-insensitive.

Change:

public ActionResult Create(FileViewModel file)

To:

public ActionResult Create(FileViewModel model)

or to any other name