Refill model after being submitted with errors.

[mdmoura]

Hello,

I have been looking at Contoso University and I have a question:

How do you deal with refilling the model helper properties after being submitted with errors?
I am talking about filling SelectLists or the data which the SelectLists depends on?

Thank You,
Miguel

[eddiegroves]

Contoso University uses a validation technique described in Simplify Client-side Validation…by Adding a Serve.

Because form submits are always handled by AJAX, the form's current state is never wiped. So select lists and other view model concerns never need to be recreated.