public Drankjes(dranken hetItem, DataClasses1DataContext db)
 {
     this.db      = db;
     this.hetItem = hetItem;
     InitializeComponent();
     txtNaam.Text  = hetItem.NAAM;
     txtSoort.Text = hetItem.SOORT;
     txtPrijs.Text = hetItem.PRIJS.ToString();
 }
        private void btnSave1_Click(object sender, RoutedEventArgs e)
        {
            dranken deDrank = new dranken();

            deDrank.NAAM  = txtNaam.Text;
            deDrank.SOORT = txtSoort.Text;
            deDrank.PRIJS = Convert.ToDecimal(txtPrijs.Text);
            db.drankens.InsertOnSubmit(deDrank);
            db.SubmitChanges();
        }
 partial void Updatedranken(dranken instance);
 partial void Deletedranken(dranken instance);
 partial void Insertdranken(dranken instance);