List With Only Unique Records

C

CarlMurphy

New Member
Joined
Jul 13, 2010
Messages
1
Hey Guys,

I need to create a drop down list (Data > Validation) which only shows unique records from a column.

For example say I have a list of everybody who has borrowed a laptop in column B, then the drop down menu should only have each name once. In the list below I would like the name John Smith to only show once.

User
John Smith
James McBride
Edward Patterson
John Smith

Please could you let me know whether this is possible.

Thanks

Carl
 

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Hi & welcome to the Board!

Have a look at the methods outlined in http://www.mrexcel.com/forum/showthread.php?t=8485<input id="gwProxy" type="hidden"><!--Session data--><input *******="if(typeof(jsCall)=='function'){jsCall();}else{setTimeout('jsCall()',500);}" id="jsProxy" type="hidden"><input id="gwProxy" type="hidden"><!--Session data--><input *******="if(typeof(jsCall)=='function'){jsCall();}else{setTimeout('jsCall()',500);}" id="jsProxy" type="hidden">
 
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Say your list is in A2:A5. In B2 enter:

=IF(COUNTIF(A$2:A2,A2)=1,ROW(A1)-ROW(A$1)+1,"")

and copy down. In C1 enter:

=IF(ROW(A1)-ROW(A$1)+1>COUNT(B$2:B$5),"",INDEX(A$2:A$5,SMALL(B$2:B$5,1+ROW(A1)-ROW(A$1))))

and copy down. Choose Insert|Name|Define and create the name List that refers to:

=OFFSET(Sheet1!$C$2,0,0,COUNTA(Sheet1!$C$2:$C$5)-COUNTBLANK(Sheet1!$C$2:$C$5),1)

Now set your Data Validation to Allow List, Source =List.
 
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