private void permitButton_Click(object sender, EventArgs e) { int status = CenterHandler.GetCenterStatus(LoginHandler.CenterId); if (status == 1) { if (nidTextBox.Text != "") { try { long nid = long.Parse(nidTextBox.Text); DialogResult dr = MessageBox.Show(string.Format("Are you sure to permit voter with NID {0} to vote?", nid), "Confirm?", MessageBoxButtons.YesNo, MessageBoxIcon.Question); if (dr == DialogResult.Yes) { if (VoterHandler.Permit(nid)) { MessageBox.Show("Voter Permitted."); } else { MessageBox.Show("Voter Not Permitted. Please check status."); } } } catch (Exception ex) { MessageBox.Show("Enter proper NID."); } } else { MessageBox.Show("Enter proper NID."); } } else if (status == 2) { MessageBox.Show("Center Blocked."); } else { MessageBox.Show("Election is not going on currently."); } }