VS2008 ftp file DOWNLOAD and DELETE

Private Function GetOnlyDirectories(ByVal v_server As String, ByVal v_user As String, ByVal v_pw As String) As String
    Dim TheShortList As String = FTPListDirectory(v_server, v_user, v_pw, True)
    Dim theDirectories As String = ""
    If TheShortList <> "" Then
        Dim TheLists() As String = Split(TheShortList.Trim, vbCrLf)
        For Each thelist As String In TheLists
            If thelist.Trim.ToLower.EndsWith(".xml") Then
                Dim v_ffile As String = v_server + thelist.Trim.ToLower
                Dim v_tfile As String = "../temp.xml"
                If ftpDownload(v_ffile, v_tfile, v_user, v_pw) Then
                    ftpDelete(v_ffile, v_user, v_pw)
                End If
            End If
            theDirectories &= vbCrLf & thelist.Trim
            theDirectories = theDirectories.Trim
        Next
    End If
    Return theDirectories
End Function

Public Shared Function ftpDownload(ByVal source As String, ByVal target As String, ByVal v_fuser As String, ByVal v_fpw As String) As Boolean
    Dim v_ret As Boolean = True
    Dim credential As New NetworkCredential(v_fuser, v_fpw)

    Dim clsrequest As FtpWebRequest = _
  DirectCast(WebRequest.Create(source), FtpWebRequest)
    clsrequest.Method = WebRequestMethods.Ftp.DownloadFile
    clsrequest.Credentials = credential

    Dim response As FtpWebResponse = _
          DirectCast(clsrequest.GetResponse, FtpWebResponse)
    Dim stream As Stream = response.GetResponseStream

    Dim reader As New StreamReader(stream)
    Dim v_cont As String = reader.ReadToEnd()

    If (File.Exists(target)) Then
        File.Delete(target)
    End If

    Dim FS As FileStream = New FileStream(target, FileMode.CreateNew, FileAccess.Write)
    Dim SW As StreamWriter = New StreamWriter(FS, Encoding.GetEncoding("utf-8"))
    SW.WriteLine(v_cont)

    SW.Flush()
    FS.Close()
    reader.Close()
    response.Close()

 

    'Read to dataset

Dim ds As DataSet = New DataSet
    Dim FSr As FileStream
    FSr = New FileStream(target, FileMode.Open)
    Dim XmlRead As New XmlTextReader(FSr)
    ds.ReadXml(XmlRead)
    FSr.Close()
    XmlRead.Close()

    'do process of dataset ……

    ds.Dispose()
    Return v_ret
End Function

   Function FTPListDirectory(ByVal Target As String, ByVal UID As String, _
ByVal Pass As String, Optional ByVal Shortlist As Boolean = False) As String
       Try
           Dim clsRequest As System.Net.FtpWebRequest = DirectCast(System.Net.WebRequest.Create(Target),  _
           System.Net.FtpWebRequest)
           clsRequest.Credentials = New System.Net.NetworkCredential(UID, Pass)
           If Shortlist Then
               clsRequest.Method = System.Net.WebRequestMethods.Ftp.ListDirectory
           Else
               clsRequest.Method = System.Net.WebRequestMethods.Ftp.ListDirectoryDetails
           End If
           Dim str As String = GetStringResponse(clsRequest)
           clsRequest.Abort()
           Return str
       Catch ex As Exception
           Throw New Exception("Connection Problem – Error:" & vbCrLf & vbCrLf & ex.Message)
           Return ""
       End Try
   End Function

   Private Function GetStringResponse(ByVal ftp As FtpWebRequest) As String
       Dim result As String = ""
       Using response As FtpWebResponse = CType(ftp.GetResponse, FtpWebResponse)
           Dim size As Long = response.ContentLength
           Using datastream As Stream = response.GetResponseStream
               Using sr As New StreamReader(datastream)
                   result = sr.ReadToEnd()
                   sr.Close()
               End Using
               datastream.Close()
           End Using
           response.Close()
       End Using
       Return result
   End Function

Public Shared Function ftpDelete(ByVal source As String, ByVal v_fuser As String, ByVal v_fpw As String) As Boolean
    Dim v_ret As Boolean = True
    Dim credential As New NetworkCredential(v_fuser, v_fpw)

    Dim clsrequest As FtpWebRequest = _
  DirectCast(WebRequest.Create(source), FtpWebRequest)
    clsrequest.Method = WebRequestMethods.Ftp.DeleteFile
    clsrequest.Credentials = credential

    Dim response As FtpWebResponse = _
          DirectCast(clsrequest.GetResponse, FtpWebResponse)
    Dim v_mmm As String = response.StatusDescription

    response.Close()
    Return v_ret
End Function