private void toolSaveSchema_Click(object sender, EventArgs e)
{
if (openFile == string.Empty)
{
DialogResult res = saveFileDialog.ShowDialog();
if (res == DialogResult.OK)
openFile = saveFileDialog.FileName;
else
return;
}
StreamWriter writer = new StreamWriter(openFile);
writer.Write(richTextBox.Text);
writer.Close();
}