>>Not polite to jump-in so please excuse me.

Does not bother me! :) I think this forum lends itself to this and that is good. :)


>>Should'nt you use a table rule to validate (assuming we are talking about some stored data)?

That certianly is an option to cover my expressed concern however the original question seemed to be one seeking advice on validation at input into the textbox control. Then I raised the issue of the possibility of other validation needs as a text box could be skipped and that validation missed.