public void sendFile(FileSender data)
 {
     try
     {
         serialization.writeToStream(networkStream, data);
     }
     catch (SocketException ex)
     {
     }
 }
 private void button1_Click_1(object sender, EventArgs e)
 {
     if (isSetFile)
     {
         using (FileStream fileStream = File.OpenRead(path))
         {
             String filename = Path.GetFileName(path);
             byte[] data     = File.ReadAllBytes(path);
             fileSender = new FileSender(filename, data);
         }
         client.sendFile(fileSender);
         labelSend.Text = "Wyslano";
     }
 }