private void btnThemMonHoc_Click(object sender, EventArgs e)
{
Utilities.ShowForm("frmMonHoc");
MonHocBUS.Instance.HienThiDgvCmbCol(colMaMonHoc);
}
private void btnThemGiaoVien_Click(object sender, EventArgs e)
{
Utilities.ShowForm("frmGiaoVien");
GiaoVienBUS.Instance.HienThiDgvCmbCol(colMaGiaoVien);
}
private void btnThemLop_Click(object sender, EventArgs e)
{
Utilities.ShowForm("frmLop");
LopBUS.Instance.HienThiDgvCmbCol(colMaLop);
}