InfoPath Dev

Hello everyone. I'm working on a project where need to validate the file name attached, My question is this: can do this with a validation rule? or how can do it. I hope you can help me thank you very much for your time and help.

thank you very much for all I served much. 

hello. friends. I have a problem in infoptah 2010 and hopefully you can help me.    how I can do to users only you can add three repeating sections in my form in InfoPath? I want some suggestion using expresions or rules.    I thank you in advance for your trouble and sent a greeting. 

thank so much hilary

thank you hilary. and if the drop down is into repeating Section is possible that all the others repeatin Sectiones are added automatically ?

thank you hilary. and if the drop down is into repeating Section is possible that all the others  repeatin Sectiones are added automatically ?

hi hilary, the combo box is out of the repeating section. Try repeating sections are automatically generated when you open the form. It is possible? I thank you so much.

hello, good day friends. I have a problem in infoptah 2010 and hopefully you can help me. I talk the situation: I have an InfoPath form with a Drop down list I use to describe some country, and a combo box where in which I discharged 3 countries (Mexico, USA and Canada), add a Repeating Section to add the description of each ...