Hi Nebie,
No problem.
Regex is short for Regular Expression and it's kind of a "short hand" for representing characters in a specific format. Here's a couple of websites which can help you learn more about it/test your ideas.
TrainingTesterBut for a date in the format dd/mm/yyyy, you would use something like
^(0?[1-9]|[12][0-9]|3[01])[\/\-](0?[1-9]|1[012])[\/\-]\d{4}$
Examples like this can be found via Google, but it's quite generic and may find strange examples like 31/02/4200. In most cases that shouldn't be a problem, but you'll find out when testing.
You would copy and paste the value above into the Format Expression field for your date and this would raise an error when a value is selected that isn't in this format.
Thanks
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Ben Lyons
Product Consultant
Blue Prism
UK
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Ben Lyons
Principal Product Specialist - Decipher
SS&C Blue Prism
UK based