adding values to variable array VBA

Question

I am trying to loop through a table that has a column for "customers" and "dollar amount". If my loop finds a customer called "greg" or "henry" I want to add his "dollar amount" to an array of an unknown size.

Can someone please help me?

Solution 1

If by unknown size, you mean that number of elements is unknown, you could use a dynamic array.

Dim aArray() As Single ' or whatever data type you wish to use
ReDim aArray(1 To 1) As Single
If strFirstName = "henry" Then
    aArray(UBound(aArray)) = 123.45
    ReDim Preserve aArray(1 To UBound(aArray) + 1) As Single
End If

Ubound(aArray) throws an error if the array hasn't been dimensioned, so we start by adding an element to it. That leaves us with an empty element at the end of the text, so your code should account for that. aArray(Ubound(aArray)-1) will give you the last valid element in the array.

Solution 2

Private Sub ArrayMy(DataRange)
  Dim DataIndex() As String
  i = 0
  On Error Resume Next
  ReDim DataIndex(0)
  For Each c In DataRange
      DataIndex(i) = c
      i = i + 1
      ReDim Preserve DataIndex(i)
  Next
End Sub