private void btnBestelling_Click(object sender, RoutedEventArgs e)
{
if (int.TryParse(txtHoeveelheid.Text, out int amount))
{
var DatumEnTijd = DateTime.Now;
var Datum = DatumEnTijd.Date;
purchase p = new purchase();
p.beer = (beer)cbBier.SelectedItem;
p.date = Datum;
p.amount = amount;
string s = cbBier.Text;
beer b = (from beer in db.beers
where beer.name == s
select beer).Single();
b.purchasecount = 1 * amount + b.purchasecount;
db.purchases.InsertOnSubmit(p);
db.SubmitChanges();
dgBestelling.ItemsSource = db.purchases.ToList();
cbBier.Text = "";
txtHoeveelheid.Text = "";
}
else
{
MessageBox.Show("Vul een geldig getal in", "Fout!");
}
}
private void detach_purchases(purchase entity)
{
this.SendPropertyChanging();
entity.beer = null;
}
private void attach_purchases(purchase entity)
{
this.SendPropertyChanging();
entity.beer = this;
}
partial void Deletepurchase(purchase instance);
partial void Updatepurchase(purchase instance);
partial void Insertpurchase(purchase instance);
