private void đăngKýToolStripMenuItem_Click(object sender, EventArgs e)
{
FThemSinhVien frmThemSinhVien = new FThemSinhVien();
frmThemSinhVien.StartPosition = FormStartPosition.CenterParent;
frmThemSinhVien.ShowDialog();
}
private void sửaThôngTinToolStripMenuItem_Click(object sender, EventArgs e)
{
FThemSinhVien frmSuaThongTin = new FThemSinhVien(strMaSV);
frmSuaThongTin.StartPosition = FormStartPosition.CenterParent;
frmSuaThongTin.ShowDialog();
lblTenSV.Text = CSinhVien_BLL.loadTenSinhVien(strMaSV);
FMainForm_SizeChanged(this, new EventArgs());
}