add a custom function to excel

MonthName( number, [ abbreviate ] ) I am looking to somehow get this VBA function into excel as a custom function
Can anyone help?
Serena2345Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Martin LissOlder than dirtCommented:
MonthName is built into Excel. Here's an explanation. If you already know that then please explain further what you need.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
johnb25Commented:
Serena,

Paste this into a module in your Personal.xlsx workbook:
Public Function NameMth(MonthNo As Long) As String

NameMth = MonthName(MonthNo)

End Function

Open in new window


Then in Excel type =NameMth(3) and the formula returns March.

John
0
SteveCommented:
Is there a real need for a custom function?
You can use the TEXT function as below:

=TEXT("25/" & 1 &"/2014","mmmm")
You can use a cell ref in place of the 1 in the middle (this is the month number).
"mmmm" = full month name
"mmm" = short month name

A lot of users prefer not to receive workbooks with VBA.
A lot of IT departments do not like VBA in workbooks either.
So there is an argument to avoid VBA User Defined Functions.

In VBA you can use Format("25/" & 1 & "/2014", "mmmm")
FORMAT can be quite versatile in VBA

ATB
Steve
0
Cloud Class® Course: Microsoft Exchange Server

The MCTS: Microsoft Exchange Server 2010 certification validates your skills in supporting the maintenance and administration of the Exchange servers in an enterprise environment. Learn everything you need to know with this course.

frankhelkCommented:
I agree to the anwers who recommend to avoid custom functions ... On the other side I see the use in a functional example, and I won't spare the opportunity to give one to those who wnat to implement a custom function - even if only for educational purpose:

To add some fine art to the Example of johnb25, I would add some parameter check to the function and return a proper error code - the code below would return a #Value! error if the month number is out of the desired range [1...12]:
Public Function NameMth(MonthNo As Long) As Variant

If (MonthNo < 1 ) Or (MontNo > 12) then
   NameMth = CVErr(xlErrValue)
Else
  NameMth = MonthName(MonthNo)
End If

End Function

Open in new window

See here for some more info about returning errors to Excel from VBA.
0
SteveCommented:
frank... typo on line 3...

'MontNo' should read 'MonthNo'

;)
0
James ElliottManaging DirectorCommented:
Another formula solution:

=IFERROR(CHOOSE(A1,"January","February","March","April","May","June","July","August","September","October","November","December"),"")

Open in new window

0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Excel

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.