I have a Grid which contains a field with a file upload control in it. The problem is if you go to update the grid and a validation fails the file is lost.
Can someone please tell me how and where I could store the file during postbacks?
Currently it is in a static field but I think this may not be a good idea?
I think you need to consider client-side validation. If you have something you need to validate server-side, you could do it in an ajax-call.