Unable to search/loop through subfolders - vba

Question

Can any one help why I can't pickup file from sub-folders?
My code will locate locate and attach the file to an email if the file is in the main folder, but not if the file is located in sub-folders.
Code Sample:
Set obMail = Outlook.CreateItem(olMailItem)
With obMail
.to = "email#comapny.com"
.Subject = "O/S Blanace"
.BodyFormat = olFormatPlain
.Body = "Please see attached files"
iRow = 24 'initialize row index from 24
Do While Cells(iRow, 1) <> Empty
'picking up file name from column A
pFile = Dir(dPath & "\*" & Cells(iRow, 1) & "*")
'checking for file exist in a folder and if its a pdf file
If pFile <> "" And Right(pFile, 3) = "pdf" Then
.Attachments.Add (dPath & "\" & pFile)
End If
'go to next file listed on the A column
iRow = iRow + 1
Loop
.Send
End With

Answer 1

The Dir function doesn't traverse subfolders. It traverses the path you give it, not the tree structure. It also resets when called so calling recursively is not an option.
So if you pass it "C:\Test\" you can use it to traverse Test; if cell contains "C:\Test\NextTest\", you can use it to iterate over NextTest.
What you can do is use a Collection to hold each directory and explore recursively in that way.
For an example of how to do this see the following from How To Traverse Subdirectories with Dir
Sub TraversePath(path As String)
Dim currentPath As String, directory As Variant
Dim dirCollection As Collection
Set dirCollection = New Collection
currentPath = Dir(path, vbDirectory)
'Explore current directory
Do Until currentPath = vbNullString
Debug.Print currentPath
If Left(currentPath, 1) <> "." And _
(GetAttr(path & currentPath) And vbDirectory) = vbDirectory Then
dirCollection.Add currentPath
End If
currentPath = Dir()
Loop
'Explore subsequent directories
For Each directory In dirCollection
Debug.Print "---SubDirectory: " & directory & "---"
TraversePath path & directory & "\"
Next directory
End Sub
Sub Test()
TraversePath "C:\Root\"
End Sub
You can easily adapt this to suit your purposes.