I use the Validation rules to Disable the Submit Button until all of the Required Fields have been filled in. I know this is not necessary, but believe it's a good practice and avoids the ugly error message that is generated when someone tries to submit
a document when a required field is not filled in.
I also use the Validaton rules to Hide the Submit button after the list item or a document has been filled in and submitted. After an item or document has been created and is re-opened in the List or Library that it resides in, the Submit button re-appears
as a valid/active option and we don't want that.
I would like to be able to set up these validations on the Submit button, but Validation rules are greyed out when the Button properties "Action:" value is set to "Submit".
Cheryl