private void LightIndihiangForm_FormClosing(object sender, FormClosingEventArgs e)
{
DialogResult dlg = MessageBox.Show("Are you sure to exit?",
"Confirmation",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question);
if (dlg == DialogResult.Yes)
{
_parser.CancelAnalyze();
}
else
{
e.Cancel = true;
}
}