private void textEditSsn_EditValueChanged(object sender, EventArgs e) { if (textEditSsn.Text.Length == 11) { if (radioGroupType.SelectedIndex == 0) { doctor = bllAdmin.CheckDoctor(textEditSsn.Text); if (doctor == null) { LabelNotFound("doctor"); } else { LabelFound <Doctor>(doctor); } } else if (radioGroupType.SelectedIndex == 1) { member = bllAdmin.CheckMember(textEditSsn.Text); if (member == null) { LabelNotFound("member"); } else { LabelFound <Member>(member); } } else { admin = bllAdmin.CheckAdmin(textEditSsn.Text); if (admin == null) { LabelNotFound("admin"); } else { LabelFound <Admin>(admin); } } } else { LabelDefault(); } }