private void btnUpdate_Click(object sender, EventArgs e)
 {
     Hide();
     Form8_UpdateFacilitator form8 = new Form8_UpdateFacilitator(dataGridView1.Rows[dataGridView1.SelectedRows[0].Index].Cells[0].Value.ToString());
     form8.Closed += (s, args) => Close();
     form8.Show();
 }
        private void btnUpdate_Click(object sender, EventArgs e)
        {
            Hide();
            Form8_UpdateFacilitator form8 = new Form8_UpdateFacilitator(dataGridView1.Rows[dataGridView1.SelectedRows[0].Index].Cells[0].Value.ToString());

            form8.Closed += (s, args) => Close();
            form8.Show();
        }