private void hv_btn_Click(object sender, EventArgs e)
{
this.Hide();
DANGKYTHICCQT_HV i = new DANGKYTHICCQT_HV();
i.Show();
}
private void dangkyBtn_Click(object sender, EventArgs e)
{
try
{
PROC_DANGKYTHICCQT_HV();
}
catch
{
MessageBox.Show("Lỗi nhập liệu");
DANGKYTHICCQT_HV i = new DANGKYTHICCQT_HV();
i.Show();
this.Hide();
return;
}
PHIEUDUTHI irhv = new PHIEUDUTHI();
irhv.Show();
this.Hide();
}