MioOggetto resultsToSerialize;               
                IFormatter binaryFormatter = new BinaryFormatter();
               
                Stream fileStream = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read, FileShare.None);
                MessageBox.Show("filestream creato");
                try
                {
                    resultsToSerialize = (MioOggetto)(binaryFormatter.Deserialize(fileStream));             
                }
                catch (SerializationException se)
                {
                    MessageBox.Show("SE: " + se.Message);
                }
                finally
                {
                    fileStream.Close();
                }