Try this Formula in Custom Validation.. =COUNTIF($A$1:A1,A1)=1
On Mon, May 16, 2011 at 11:07 PM, vikram <vikramahuj...@gmail.com> wrote: > Hi, > > > > Please help regarding formula for validation: > > > > If we enter any numeric value in particular column it does not allow a > duplicate entry and shows error message. > > > > For example;if we enter 1 to 5 numeric value in particular column and try > to enter 1 again or any value between already entered value it shows error > message and does allow user to enter any value. > > > > Regards, > > > > Vikram > > > > > > > > > > > > Download: www.eType.com > > > > -- > > ---------------------------------------------------------------------------------- > Some important links for excel users: > 1. Follow us on TWITTER for tips tricks and links : > http://twitter.com/exceldailytip > 2. Join our LinkedIN group @ http://www.linkedin.com/groups?gid=1871310 > 3. Excel tutorials at http://www.excel-macros.blogspot.com > 4. Learn VBA Macros at http://www.quickvba.blogspot.com > 5. Excel Tips and Tricks at http://exceldailytip.blogspot.com > > To post to this group, send email to excel-macros@googlegroups.com > > <><><><><><><><><><><><><><><><><><><><><><> > Like our page on facebook , Just follow below link > http://www.facebook.com/discussexcel > -- Regards Rajan verma +91 9158998701 -- ---------------------------------------------------------------------------------- Some important links for excel users: 1. Follow us on TWITTER for tips tricks and links : http://twitter.com/exceldailytip 2. Join our LinkedIN group @ http://www.linkedin.com/groups?gid=1871310 3. Excel tutorials at http://www.excel-macros.blogspot.com 4. Learn VBA Macros at http://www.quickvba.blogspot.com 5. Excel Tips and Tricks at http://exceldailytip.blogspot.com To post to this group, send email to excel-macros@googlegroups.com <><><><><><><><><><><><><><><><><><><><><><> Like our page on facebook , Just follow below link http://www.facebook.com/discussexcel