Remove a file extension

How might I remove the extension off of a file string such as "c:\windows\file.txt.bak" so it becomes just "c:\windows\file.txt"? Thanks.

You can use this code

Code:

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Function GetFileNameWithoutExtension(ByVal FileName As String) As String
 Dim FileN As String
 Dim TabFile() As String
 Dim i As Integer
 TabFile = Split(FileName, ".")
 FileN = ""
 For i = 0 To UBound(TabFile) - 1
  If FileN <> "" Then FileN = FileN & "."
  FileN = FileN & TabFile(i)
 Next i
 GetFileNameWithoutExtension = FileN
End Function

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Thanks! Nice code, you make it look easy... :D Then again, it probably is for you... ;)

KWell's code is vb6 only and a file without a suffix returns an empty string.



here's my version:

Code:

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Public Function DropFileSuffix(ByVal FileName As String) As String
   
    Dim Counter As Long
    If InStr(FileName, ".") = 0 Then
      ' Empty string or no suffix - return the input string
      DropFileSuffix = FileName
    Else
      ' Remove the suffix
      Counter = Len(FileName)
      While Counter > 0 And Mid(FileName, Counter, 1) <> "."
        Counter = Counter - 1
      Wend

      DropFileSuffix = Left(FileName, Counter - 1)
    End If
  End Function

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Is his code VB6 only, because it uses the Split function?

oetje, yes

You can code a split function for vb5 but that's just getting too complicated for this function.

Code:

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Public Function Split(ByVal sIn As String, Optional sDelim As _
            String, Optional nLimit As Long = -1, Optional bCompare As _
            VbCompareMethod = vbBinaryCompare) As Variant
          Dim sRead As String, sOut() As String, nC As Integer
          If sDelim = "" Then
              Split = sIn
          End If
          sRead = ReadUntil(sIn, sDelim, bCompare)
          Do
              ReDim Preserve sOut(nC)
              sOut(nC) = sRead
              nC = nC + 1
              If nLimit <> -1 And nC >= nLimit Then Exit Do
              sRead = ReadUntil(sIn, sDelim)
          Loop While sRead <> ""
          ReDim Preserve sOut(nC)
          sOut(nC) = sIn
          Split = sOut
      End Function

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take a peek at:
http://support.microsoft.com/support.../Q188/0/07.ASP

Sorry Mark Sreeves for the error and thank a lot for the correction

You could have something easy like this so you don't need the split function or anything:

Code:

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Function Extension(ByVal strFilename As String) As String
    Dim intPos As Integer

    Extension = vbNullString

    intPos = Len(strFilename)

    Do While intPos > 0
        Select Case Mid$(strFilename, intPos, 1)
            Case "."
                Extension = Mid$(strFilename, intPos + 1)
                Exit Do
            Case Else
        End Select

        intPos = intPos - 1
    Loop
End Function

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An example using the StrReverse Function

Reverse the string and look for the first occurence of a "."

Function RemoveExtension(ByVal strFile as String) As String
Dim i As Integer
strFile = StrReverse(strFile)
i = InStr(strText, ".")
If i > 0 Then strFile = Mid$(strFile, i + 1)
strFile = StrReverse(strFile)
RemoveExtension = strFile
End Function