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VBA Sort Array

This tutorial will demonstrate how to Sort values in an Array in VBA

Sorting a One-Dimensional Array using a loop

Sorting an Array requires a bit of data manipulation using loops, variables and temporary arrays.

  • You first need to populate the array with your values
  • You then need to loop through the array twice!  Once to get a value from the current element array, and the while still in that loop, to get the value of the next element in the array.
  • You then need to compare the elements – and move the 2nd one to the position of the first one if the 2nd one is alphabetically BEFORE the 1st one.

The example below demonstrates this procedure.

Sub SortAnArray()
   Dim i As Long
'Set the array
   Dim strName() As Variant
   Dim Temp As Variant
'populate the array
   strName() = Array("Bob Smith", "John Davies", "Fred Jones", "Steve Jenkins", "Bob Williams")
'loop through bound of the arry and get the first name
   For i = LBound(strName) To UBound(strName) - 1
'loop through again, and check if the next name is alphabetically before or after the original
      For j = i + 1 To UBound(strName)
         If UCase(strName(i)) > UCase(strName(j)) Then
'if the name needs to be moved before the previous name, add to a temp array
            Temp = strName(j)
'swop the names
            strName(j) = strName(i)
            strName(i) = Temp
         End If
     Next j
   Next i
'Output the Array through a message box
   MsgBox Join(strName(), vbCrLf)
End Sub

If you run this procedure, you would get the following message box.

vba sort array forwards

You can also sort the array in the other direction – eg: Z to A by changing this line of code

If UCase(strName(i)) > UCase(strName(j)) Then

to this line of code

If UCase(strName(i)) < UCase(strName(j)) Then

You would then get the following message box.

vba sort array backwards

 

 

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