InfoPath Dev

Hi All, I have a repeating table, in that one drop down is there with the categories of 'a.b,c,d' etc. Think that Initially user selected the 'a' category. If he selects the same category again, I have to show a error message. How can I achieve this. Thanks Ramesh D

Hi - you'll need to use a condition on the rule to show the message that uses preceding-sibling. Here's a link to a sample form with some preceding-sibling formulas that may get you started.