[AccessD] highest value of 4 variables - urgent

The nice thing about the param array in this case is that you can pass in as
many values as you wish to the function.  In addition you can use the for
next iterator to step through the array.  Those two concepts allow a very
quick and easy solution to this kind of problem, and additionally create a
generic solution that fits not only your specific need but any set of
numbers. 

John W. Colby
Colby Consulting
www.ColbyConsulting.com 
-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Kath Pelletti
Sent: Monday, November 05, 2007 6:13 PM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] highest value of 4 variables - urgent

thanks Gustav - I have never really mastered arrays in vba (used to use them
a lot in Cobol, RPG - but many moons ago).

So thanks to you and John for the examples.

Kath
----- Original Message -----
From: "Gustav Brock" <gustav at cactus.dk>
To: <accessd at databaseadvisors.com>
Sent: Monday, November 05, 2007 9:54 AM
Subject: Re: [AccessD] highest value of 4 variables - urgent


> Hi Kath
>
> I'm with JC. This is an excellent example to demonstrate the power of 
> ParamArray. Here's an example specific for dates that I have used:
>
> Public Function DateMax(ParamArray avarDates() As Variant) As Date
>
> ' Return maximum date/time value of elements in
> ' array avarDates().
> ' If no elements of array avarDates() are dates,
> ' value of cdatEmpty is returned.
> '
> ' 2003-09-30. Cactus Data ApS, CPH.
>
>  ' Return value for an empty array.
>  Const cdatEmpty As Date = #1/1/100#
>
>  Dim varDate     As Variant
>  Dim varDateMax  As Variant
>
>  For Each varDate In avarDates()
>    If IsDate(varDate) Then
>      If VarType(varDate) <> vbDate Then
>        varDate = CDate(varDate)
>      End If
>      If varDate > varDateMax Then
>        varDateMax = varDate
>      End If
>    End If
>  Next
>
>  If IsEmpty(varDateMax) Then
>    varDateMax = cdatEmpty
>  End If
>
>  DateMax = varDateMax
>
> End Function
>
> /gustav
>
>
>>>> kp at sdsonline.net 03-11-07 23:57 >>>
> maybe i am having a vague moment - but what function can I use to get the 
> highest value of 4 variables, eg:
>
>
> eg. I want to know x where x is the highest of (var1, var2, var3, var4)
>
> ta
> ______________________________________
> Kath Pelletti
>
>
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