Question

I have a view that displays HeaderModel details. Under this is displays LineModels associated with this header.

Some of the LineModel fields are required.

My problem is when it comes to updating the header the ModelState.IsValid is false, because some of the fields that a new LineModel would require are not filled in.

How can I get around this and allow updating the header and adding lines in one view?

Answer 1

If I understand well you can use the bind exclude:

public ActionResult Update([Bind(Exclude = "LineModelNameProperty")]HeaderModel model){

}