private void btnOrder_Click(object sender, EventArgs e)
{
if (dataGridView1.CurrentRow.Index > 0)
{
Form_KhachHang.classroomid = dataGridView1.Rows[dataGridView1.CurrentRow.Index].Cells[0].Value.ToString();
Form_KhachHang frm_kh = new Form_KhachHang();
frm_kh.ShowDialog();
}
}
private void kháchHàngToolStripMenuItem_Click(object sender, EventArgs e)
{
Form_KhachHang kh = new Form_KhachHang();
kh.Show();
}