Im writing a white paper for my company about how to handle page validations in asp.net pages. Our problem is that we don't have a common strategy for handling validations... some devs use server based validation methods, some use the built in client side validations.

Which do YOU use? And what is the strategy behind your choice?

Im also puzzled about how to use the built in validation controls when validating datagrids. How do you handle datagrid validations (template columsn with textboxes etc)...

note, is for asp 1.1 not whitbey...

/Henrik