Excel VBA function returning an array

excel, vba

Solution

ok, here I have a function datamapping that returns an array of multiple 'columns', so you can shrink this down just to one. Doesn't really matter how the array gets populated, particularly

Function dataMapping(inMapSheet As String) As String()

   Dim mapping() As String

   Dim lastMapRowNum As Integer

   lastMapRowNum = ActiveWorkbook.Worksheets(inMapSheet).Cells.SpecialCells(xlCellTypeLastCell).Row

   ReDim mapping(lastMapRowNum, 3) As String
   For i = 1 To lastMapRowNum
      If ActiveWorkbook.Worksheets(inMapSheet).Cells(i, 1).Value <> "" Then
         mapping(i, 1) = ActiveWorkbook.Worksheets(inMapSheet).Cells(i, 1).Value
         mapping(i, 2) = ActiveWorkbook.Worksheets(inMapSheet).Cells(i, 2).Value
         mapping(i, 3) = ActiveWorkbook.Worksheets(inMapSheet).Cells(i, 3).Value
      End If
   Next i

   dataMapping = mapping

End Function




Sub mysub()

   Dim myMapping() As String
   Dim m As Integer

   myMapping = dataMapping(inDataMap)

   For m = 1 To UBound(myMapping)

     ' do some stuff

   Next m   

end sub

Problem

Can you create an Excel VBA function that returns an array in the same manner as LINEST does, for example? I would to create one that, given a supplier code, returns a list of products for that supplier from a product-supplier table.

Original source