Get list of sub-directories in VBA

Question

• I want to get a list of all sub-directories within a directory.
• If that works I want to expand it to a recursive function.

However my initial

Answer 1

Here is a VBA solution, without using external objects.

Because of the limitations of the Dir() function you need to get the whole content of each folder at once, not while crawling with a recursive algorithm.

Function GetFilesIn(Folder As String) As Collection
  Dim F As String
  Set GetFilesIn = New Collection
  F = Dir(Folder & "\*")
  Do While F <> ""
    GetFilesIn.Add F
    F = Dir
  Loop
End Function

Function GetFoldersIn(Folder As String) As Collection
  Dim F As String
  Set GetFoldersIn = New Collection
  F = Dir(Folder & "\*", vbDirectory)
  Do While F <> ""
    If GetAttr(Folder & "\" & F) And vbDirectory Then GetFoldersIn.Add F
    F = Dir
  Loop
End Function

Sub Test()
  Dim C As Collection, F

  Debug.Print
  Debug.Print "Files in C:\"
  Set C = GetFilesIn("C:\")
  For Each F In C
    Debug.Print F
  Next F

  Debug.Print
  Debug.Print "Folders in C:\"
  Set C = GetFoldersIn("C:\")
  For Each F In C
    Debug.Print F
  Next F
End Sub

EDIT

This version digs into subfolders and returns full path names instead of returning just the file or folder name.

Do NOT run the test with on the whole C drive!!

Function GetFilesIn(Folder As String, Optional Recursive As Boolean = False) As Collection
  Dim F As String
  Set GetFilesIn = New Collection
  F = Dir(Folder & "\*")
  Do While F <> ""
    GetFilesIn.Add JoinPaths(Folder, F)
    F = Dir
  Loop

  If Recursive Then
    Dim SubFolder, SubFile
    For Each SubFolder In GetFoldersIn(Folder)
      If Right(SubFolder, 2) <> "\." And Right(SubFolder, 3) <> "\.." Then
        For Each SubFile In GetFilesIn(CStr(SubFolder), True)
          GetFilesIn.Add SubFile
        Next SubFile
      End If
    Next SubFolder
  End If
End Function

Function GetFoldersIn(Folder As String) As Collection
  Dim F As String
  Set GetFoldersIn = New Collection
  F = Dir(Folder & "\*", vbDirectory)
  Do While F <> ""
    If GetAttr(Folder & "\" & F) And vbDirectory Then GetFoldersIn.Add JoinPaths(Folder, F)
    F = Dir
  Loop
End Function

Function JoinPaths(Path1 As String, Path2 As String) As String
  JoinPaths = Replace(Path1 & "\" & Path2, "\\", "\")
End Function

Sub Test()
  Dim C As Collection, F

  Debug.Print
  Debug.Print "Files in C:\"
  Set C = GetFilesIn("C:\")
  For Each F In C
    Debug.Print F
  Next F

  Debug.Print
  Debug.Print "Folders in C:\"
  Set C = GetFoldersIn("C:\")
  For Each F In C
    Debug.Print F
  Next F

  Debug.Print
  Debug.Print "All files in C:\"
  Set C = GetFilesIn("C:\", True)
  For Each F In C
    Debug.Print F
  Next F
End Sub