Question

In this example how UpdateModel method fill person instance with formValues?
I think UpdateModel use reflection while filling person by formValues but how updatemodel catch formValues parameter ?

[HttpPost]
public ActionResult Edit(int ID,FormCollection formValues)
{
     Person person= db.PersonSet.Single(p => p.PersonID == ID);
     UpdateModel(person);
     db.SaveChanges();
     return RedirectToAction("Details", new { ID = person.PersonID });

}

Answer 1

I thinks it uses something like this:

var fc = new FormCollection(Controller.Request.Form);

http://msdn.microsoft.com/en-us/library/system.web.httprequestbase.form.aspx

http://msdn.microsoft.com/en-us/library/system.web.mvc.controller_members.aspx

http://msdn.microsoft.com/en-us/library/dd492288.aspx