private void cmnuScanFile_Click(object sender, EventArgs e)
{
// Use an open file dialog to let the user specify a file to scan.
m_openFileDialog.CheckFileExists = true;
m_openFileDialog.Filter = ResourceHelper.FileFilter(FileFilterType.AllFiles);
if (m_openFileDialog.ShowDialog() == DialogResult.OK)
GetTokensSubStrings(m_openFileDialog.FileName);
}