Help: Function Declaration?

[Dalmatian]

I think that this fits under function declarations:

I've got a function declared as :

function DoOneOrTheOther (Optional One as String, Optional Other as string) as Boolean

This function is only meant to do one of the two calculations specified by string, the two calculations requiring different initializations within the function. I want to make sure that the user sends at least one of the two parameters down. How do I do that (I mean without error checking , if statement based code)

Thanx!

[Chris Eastwood]

Hi

When you have optional parameters, you used to be able to count on (in VB4) anyway, the 'IsMissing' keyword (it's pretty dumb under vb5).

You can however check the strings to see if either is empty.

eg.


Function DoOneOrTheOther(optional One as string, optional Other as string) as Boolean

If len(One) = 0 And len(Other) = 0 then
'
' Both are missing or empty - do something
'
Exit Function
End If

If len(One) > 0 then
'
' Do something with parameter One
'
Exit Function
End IF

If len(Other) > 0 then
'
' Do Something with parameter two
'
Exit Function
End If

End Function






Regards


Chris Eastwood






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