I need to create a Cancel button that warns the user about saved data on a form before leaving the page. Thus, I can't call setDefaultFormProcessing (false), since that would cause the data not be transferred to the model. But I ALSO don't want the page to complain about missing or invalid fields.
What's the best way to accomplish these goals? ** This email and any attachments may contain information that is confidential and/or privileged for the sole use of the intended recipient. Any use, review, disclosure, copying, distribution or reliance by others, and any forwarding of this email or its contents, without the express permission of the sender is strictly prohibited by law. If you are not the intended recipient, please contact the sender immediately, delete the e-mail and destroy all copies. **