private void dataGridViewX1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            int Index = dataGridViewX1.CurrentCell.RowIndex;
            textBoxStt.Text = dataGridViewX1.Rows[Index].Cells[0].Value.ToString();
            textBoxHoten.Text = dataGridViewX1.Rows[Index].Cells[1].Value.ToString();
            textBoxGioitinh.Text = dataGridViewX1.Rows[Index].Cells[2].Value.ToString();
            textBoxNgaysinh.Text = dataGridViewX1.Rows[Index].Cells[3].Value.ToString();
            textBoxTinhtrang.Text = dataGridViewX1.Rows[Index].Cells[4].Value.ToString();
            textBoxNoisinh.Text = dataGridViewX1.Rows[Index].Cells[5].Value.ToString();
            textBoxNghenghiep.Text = dataGridViewX1.Rows[Index].Cells[6].Value.ToString();
            textBoxDiachi.Text = dataGridViewX1.Rows[Index].Cells[7].Value.ToString();
            textBoxSodt.Text = dataGridViewX1.Rows[Index].Cells[8].Value.ToString();
            textBoxCha.Text = dataGridViewX1.Rows[Index].Cells[9].Value.ToString();
            textBoxMe.Text = dataGridViewX1.Rows[Index].Cells[10].Value.ToString();
            textBoxContrai.Text = dataGridViewX1.Rows[Index].Cells[11].Value.ToString();
            textBoxCongai.Text = dataGridViewX1.Rows[Index].Cells[12].Value.ToString();
        }