private void saveToolStripMenuItem1_Click(object sender, EventArgs e) { isUpdate = false; if (file == null) { saveAsToolStripMenuItem1_Click(sender, e); } else { if (file is WordHandler) { file.Save(richTextBox.Rtf); } else { using (Stream stream = file.GetOutputStream()){ richTextBox.SaveFile(stream, file.RTBType); stream.Flush(); } } } }