Try this on your workbook:

Names in Workbook: Docs
Refers to:
=Data!$F$3:INDEX(Data!$F:$F,COUNTIF(Data!$F:$F,"?* ")+COUNT(Data!$F:$F)+2,1)

Names in Workbook: ReferredBy
Refers to: =Feb_09!$H$10:$H$43

Select the ReferredBy range (Feb_09!$H$10:$H$43)
Data.Validation
....Allow: list
....Source: Docs

On the Data sheet
F3: (the first value you want on the list)

The first ARRAY FORMULA (committed with CTRL+SHIFT+ENTER):
F4: =IF(SUMPRODUCT((ReferredBy<"")*
ISERROR(MATCH(ReferredBy,$F$3:F3,0)))<0,
INDEX(ReferredBy,MATCH(TRUE,ISERROR(IF(ISBLANK(Ref erredBy),
FALSE,MATCH(ReferredBy,$F$3:$F3,0))),0),1),"")

Copy that formula into F5 and down as far as you think you'll need.

Now test the input range.

That should work...Does it?

Regards,

Ron Coderre
Microsoft MVP (Excel)


"watermt" wrote in message
...
Gord,
I've tried to get the DataValFlexList.xls sample to work for me but have
had
no luck. In the sample it refers to column B as List Items B2:B20; my
list
items (named Docs) to update is on a seperate worksheet named DATA.

Also in the sample it refers to column D as the User Input D2:D20; my user
input (named Referred BY) to select and enter in on the worksheet named
Feb_09.

My range definitions are as follows:

Docs:
=DATA!$F$3:INDEX(DATA!$F:$F,COUNTIF(DATA!$F:$F,"?* ")+COUNT(DATA!$F:$F),1)

Referred BY: =Feb_09!$H$10:$H$43

From what I've offered here, can you tell me where I've made an error or
where I've overlooked something in one of the formulas?

Much appreciated,
Mike


"Gord Dibben" wrote:

Howard

That won't add new items to the list.

Debra Dalgleish has a couple of methods in these download sample
workbooks.

http://www.contextures.on.ca/excelfiles.html#DV0038

http://www.contextures.on.ca/excelfiles.html#DV0012


Gord Dibben MS Excel MVP

On Thu, 19 Mar 2009 15:32:10 -0700, "L. Howard Kittle"
wrote:

Go to the second sheet and select the entire column(or enough of that
column
so you will never run out of rows) and name it, say MyList.

Now on the first sheet in the Data Valadation check List and in the
Source
box enter =MyList OK.

HTH
Regards,
Howard

"watermt" wrote in message
...
I have a Validation list (=PhysiciansLN) that lists the last names of
physicians in our hospital. If a user of this Excel file does not
find
the
physicians last name in the =PhysiciansLN list is there a way that I
can
allow the user to type the new last name and have that automatically
added
to
the =PhysiciansLN list?

I was hoping to be able to add new last names to that list through a
formula
or function?

Mike