private void usingPINToolStripMenuItem_Click(object sender, EventArgs e)
{
if (vote == null)
{
vote = new FrmVoteByPin {
MdiParent = this
};
vote.Closed += Vote_Closed;
vote.Show();
}
else
{
vote.Activate();
vote.WindowState = FormWindowState.Normal;
}
}
private void Vote_Closed(object sender, EventArgs e)
{
vote = null;
}