Array Parameters as Variants Only

[TheVisionThing]

Am I correct in my assumption that I can only pass arrays in the form of
variants to a procedure as a parameter.

For example, the following function always works for arrays
Function DoNothing(ByRef ArrIn as variant)
DoNothing = arrIn
End Function

While the following function never seems to work for arrays even if they are
dimensioned as integer arrays.
Function DoNothing(ByRef ArrIn as integer)
DoNothing = arrIn
End Function

Regards,
Wayne C.

 

[Tom Ogilvy]

Sub Main()
Dim arr() As Integer
Dim v As Variant
ReDim arr(1 To 3)
For i = 1 To 3
arr(i) = i
Next
v = DoNothing(arr)
For i = LBound(v) To UBound(v)
Debug.Print i, v(i)
Next
End Sub


Function DoNothing(ByRef ArrIn() As Integer)
DoNothing = ArrIn
End Function


works for me.

 

[Alan Beban]

Am I correct in my assumption that I can only pass arrays in the form of
variants to a procedure as a parameter.

No. Perhaps you are thinking about the parameters of a ParamArray array.

Alan Beban

 

[Guest]

Your code snippet works when the array is called within a Sub. I have seen
and tried code snippets from other posts using the same approach you
outlined,but have never been able to get it to work as a worksheet function
call. If the function is used in a cell on an Excel worksheet and the array
values are called from a range on a worksheet, the result is the #VALUE error
message

For example, the values 1,2,3 are in Rows C3:C5 and named ArrIn. When
=DoNothing(ArrIn) or DoNothing(ArrIn()) is entered in Cell D7 , the result is
always #VALUE! .

Am I missing something?

thebaje

 

[Tom Ogilvy]

ArrIn isn't an array. It is a range.

In that situation you could do

Public Function Test(arr As Range) As Variant
Dim vArr as Variant
vArr = arr.Value
Test = vArr
End Function

Assuming you wanted to do something to the values of the cells in the range
before you passed back the answer.

 

[Alan Beban]

Your code snippet works when the array is called within a Sub. I have seen
and tried code snippets from other posts using the same approach you
outlined,but have never been able to get it to work as a worksheet function
call. If the function is used in a cell on an Excel worksheet and the array
values are called from a range on a worksheet, the result is the #VALUE error
message

For example, the values 1,2,3 are in Rows C3:C5 and named ArrIn. When
=DoNothing(ArrIn) or DoNothing(ArrIn()) is entered in Cell D7 , the result is
always #VALUE! .

The above is simply wrong. Perhaps there is something in your code for
DoNothing that causes it. With 1,2,3 in C3:C5, which is named "ArrIn", with
Function DoNothing(whatever) As Integer
DoNothing = Application.Sum(whatever)
End Function

then on the worksheet =DoNothing(ArrIn) returns 6

Alan Beban