public async void setData(int id, TextBox id_transaksi, TextBox alamat_pembeli, TextBox namaPembeli, TextBox totalHarga)
{
this.id = id;
transaction = UtilProvider.getDataTransaction().getData()[id];
this.id = transaction.getId();
id_transaksi.Text = transaction.getPoNumber();
alamat_pembeli.Text = transaction.getAddress();
namaPembeli.Text = transaction.getCustomerId().ToString();
totalHarga.Text = transaction.price.ToString();
}