Thank you both.  Great help.

Thanks domahaMOO.I didn't word my question very well.Using the built in validation, does anyone know if acrobat sets a property that can be tested to find validation state?If not, I can code the validation like your example.I am still trying to get my footing with LC. (I use ES 8.2)I have been tryin...

Hi all,I am trying to test a phone number field for validation. I have the validation settings configured but I want to use the exit event to refocus on the field if the entry is wrong. As you may have seen you can enter an invalid phone number and it pops up the error then tabs to the next field.  ...

Thanks.  That was it.

https://acrobat.com/#d=JgGb8D8ckTz1t8MSwduL4g

I can post the form.  Where to?

I have designed a form based on the example in the Terry book of using javascript with addInstance to make a button add a row to a table.Works fine for me however I am trying to morph the form a little so that instead of allowing the user to click the add row button I have them enter a numeric value...