Read File Extension RSS

• • Reply
  •  
  

  imran buchh

  Participant

  1160 Points

  265 Posts

  Read File Extension

  Aug 21, 2006 11:48 PM|LINK

  Hello,
  
  I want to read the file extension when uploading a file. How can i read the file extension and allow only certain types of files to be uploaded?

  Can anyone help please?

  CODE
  ==============

        If (Me.fileUpload_fu.PostedFile <> Nothing) Then
  
              Dim contentLength As Integer = Me.fileUpload_fu.PostedFile.ContentLength

              If (contentLength > 0) Then

                 errorMsg = ""

                 Dim originalFileName As String = System.IO.Path.GetFileName(Me.fileUpload_fu.PostedFile.FileName)

                 Dim fileExtension As String = ?????

                 Dim tempFileName As String = originalFileName

                 Dim SaveLocation As String = tempWebServerSaveLocation & "\" & fn

                 Me.fileUpload_fu.PostedFile.SaveAs(SaveLocation)

                 Return True

              Else

                   errorMsg = "Please select a valid file"

                    Return False

              End If

     Else

              errorMsg = "Please select a valid file"

               Return False

  End If

  =============

  Cheers,
  Imran

  U and I Solutions,
  http://www.uandisolutions.com
• • Reply
  •  
  

  Ryoushin

  Member

  292 Points

  81 Posts

  Re: Read File Extension

  Aug 22, 2006 11:46 AM|LINK

   

  Dim fileExtension As String = _
  Me.fileUpload_fu.PostedFile.FileName.SubString( _
  Me.fileUpload_fu.PostedFile.FileName.LastIndexOf("."))
  
  
  ' returns strings like ".jpg"
  

   
  Ryoushin - Sator Arepo Tenet Opera Rotas.
• • Reply
  •  
  

  omueller

  Member

  2 Points

  1 Post

  Re: Read File Extension

  Feb 20, 2008 11:03 PM|LINK

  (I understand that much time has passed since you posted your question, but I would like to add my comment for any future people that stumble across your post when searching the web.)

  
  An easier solution would be to use something similar to what you already used:

   

  Dim fileExtension As String = System.IO.Path.GetExtension(Me.fileUpload_fu.PostedFile.FileName)
  

    
  Onyx Mueller