Question

My SomeModel is defined as:

public class SomeModel
{
   public string property1 { get; set }
   public bool property2 { get; set; }
}

I have an action:

public ActionResult Edit(int id)
{
    SomeModel model = new SomeModel();
    //... populate model ...
    return View(model);
}

Assume that in the view property1 and property2 are instanced as @Html.EditorFor, in which case property1 would be rendered as a <input type='text'> and property2 would be a <input type='checkbox'>.

If I have the following controller action to handle a submit from the Edit form:

[HttpPost]
public ActionResult Edit(int id, SomeModel model, FormCollection collection)
{
}

How does the parameter model get populated, if ever?

Answer 1

If you use something like

[HttpPost]
public ActionResult Action(SomeModel model)
{
    //do something
}

All the model binding will be taken care of for you if you use the standard Html.EditorFor syntax in your view, as you have alluded to.

@Html.EditorFor(model => model.Property1)
@Html.EditorFor(model => model.Property2)

More on Model Binding here