The process cannot access the file because it is being used by another process

[nightangel]

Hi dude,what i was done in my application is uploading a image file to my server using FTP, it work great when pushing a file into the server path using FTP.
The problem i met now is i need to do a resuming for the file uploading if the client connection or server connection is down.

E.g: Sunset.jpg (500KB) when i upload until half of it, (332KB in the server) and unplug my connection, it will looping and try to connect to the server, after i plug back, the FTP login is success, but it throw me an exception, say that: Sunset.jpg "The process cannot access the file because it is being used by another process".

How can i solve the problem? how do i close the file opening in the server?

SendCommand("STOR " & Path.GetFileName(sFileName))
 
' Send a command to the FTP Server.
Private Sub SendCommand(ByVal sCommand As String)
        sCommand = sCommand & ControlChars.CrLf
        Dim cmdbytes As Byte() = ASCII.GetBytes(sCommand)
 
        m_objClientSocket.Send(cmdbytes, cmdbytes.Length, 0)
 
        ReadReply()
End Sub
 
 ' Read the reply from the FTP Server
Private Sub ReadReply()
        m_sMes = ""
        m_sReply = ReadLine()
        m_iRetValue = Int32.Parse(m_sReply.Substring(0, 3))
End Sub
 
' Read a line from the server.
Private Function ReadLine() As String
 
        Dim seperator As Char = ControlChars.Lf
        Dim mess() As String
 
        If (bClearMes) Then
            m_sMes = ""
        End If
        Do While (True)
            Array.Clear(m_aBuffer, 0, BLOCK_SIZE)
            m_iBytes = m_objClientSocket.Receive(m_aBuffer, m_aBuffer.Length, 0)
            m_sMes += ASCII.GetString(m_aBuffer, 0, m_iBytes)
 

When the program is reading the line from the server, it replying a message from " m_sMes " : Sunset.jpg "The process cannot access the file because it is being used by another process".