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/101406.aspxWed, 25 Feb 2015 02:02:51 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:101406Hilary Stoupa0https://www.infopathdev.com:443/forums/thread/101406.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=101406<p>Try this blog post - I think it may be what you are trying to achieve: <a href="http://blogs.msdn.com/b/infopath/archive/2006/08/10/694530.aspx">http://blogs.msdn.com/b/infopath/archive/2006/08/10/694530.aspx</a></p>https://www.infopathdev.com:443/forums/thread/101354.aspxMon, 23 Feb 2015 12:20:04 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:101354yuzarive0https://www.infopathdev.com:443/forums/thread/101354.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=41&PostID=101354Hi I was create a repeating section and drag a combo box within it. in the combo box we have some value for example A,B,C and D i want the user can not ability select same value in one selected. I mean for example Mr.Jon selected aren&#39;t A , A or B , B he can select A,C or B,C etc... what am i do?