Selective Model Binding

SelectiveModelBinding.cs

interface ICreatePerson
{
  string Name { get; set; }
  string Sex { get; set; }
  int Age { get; set; }
}

interface IUpdatePerson 
{
  string Name { get; set; }
}

class Person : ICreatePerson, IUpdatePerson
{
  public int Id { get; }
  public string Name { get; set; }
  public string Sex { get; set; }
  public int Age { get; set; }
}

public ActionResult Edit(int id, FormCollection collection)
{
    // Get orig person from db
    var person = this.personService.Get(id);

    try
    {
        // Update person from web form
        UpdateModel<IUpdatePerson>(person);

        // Save person to db
        this.personService.Update(person);

        return RedirectToAction("Index");
    }
    catch
    {
        ModelState.AddModelErrors((person.GetRuleViolations());

        return View(person);
    }
}