private void cmd_edit_Click(object sender, EventArgs e)
 {
     _regCust = new Reg_Customer();
     _regCust.SetKey(gridView1.GetFocusedRowCellValue("kode_customer").ToString());
     _regCust.ShowDialog();
 }
 private void cmd_save_Click(object sender, EventArgs e)
 {
     _regCust = new Reg_Customer();
     _regCust.ShowDialog();
 }