https://www.infopathdev.com:443/forums/41.aspxIf you're not sure where to ask your question, ask it here. If necessary, our moderators will make sure it gets classified in the correct board.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/115682.aspxThu, 23 Feb 2017 18:37:44 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:115682Hilary Stoupa0https://www.infopathdev.com:443/forums/thread/115682.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=115682<p>&nbsp;You have to add conditional formatting to the dropdown that checks to see if the node in the secondary data source that provides the value is blank when the other data items match - see attached sample for an idea. Save the sample locally, right click &amp; select Design, then you can preview / look at the formulas. </p>https://www.infopathdev.com:443/forums/thread/115681.aspxThu, 23 Feb 2017 17:04:15 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:115681alexisjbell0https://www.infopathdev.com:443/forums/thread/115681.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=115681I&#39;ve spent way to much time researching this and trying different things, time to ask the experts! I have a cascading drop-down in my InfoPath form. Works perfectly except for one thing. If there is no option, the drop-down still shows but it is empty. I want to hide it if it is empty and I can&#39;t get it to work. See attachment for table example. So if someone chooses Social Engineering &gt; Vishing, Category 3 fields shows up blank. I would like it to not show since it is empty. Thank you!