https://www.infopathdev.com:443/forums/39.aspxNew to InfoPath? Search to see if your question has already been answered. If it has not, then ask it here or the appropriate topic forum.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/66089.aspxThu, 21 Apr 2011 11:04:34 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:66089ErnestoM0https://www.infopathdev.com:443/forums/thread/66089.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=66089<p>I would suggest that you have two fields, one for each calculation (one with tax and one without tax), and then conditionally display only one of those, depending on the selection made in the dropdown (yes vs no). </p><p>Good luck!<br /></p>https://www.infopathdev.com:443/forums/thread/66086.aspxThu, 21 Apr 2011 08:29:46 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:66086FreddyTovar0https://www.infopathdev.com:443/forums/thread/66086.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=66086<p>Hi everyone. I really need your guys help. I am trying to make an invoice form using infopath 2010. I have a column called &quot;Taxable&quot; and have a drop down control saying &quot;Yes&quot; and &quot;No&quot; to show if the item is able to be taxed. I set yes to equal true and no=false (boolean). </p> <p>I have another column that shows the &quot;Net Total&quot; for that item which multiples the quanity and item cost.</p> <p>Heres my problem:</p> <p>I have&nbsp;a column called &quot;Taxable Total&quot; which I want to show the sum of the&nbsp;&quot;Net Total&quot;&nbsp;multipled by the current tax rate ONLY if the Taxable column is marked yes for that item.</p> <p>I am using a repeating table. </p> <p>Please help, thanks</p>