prs/prs.classes/Entities/Receipt/InvoiceReceipt.cs

using System.ComponentModel;
using InABox.Core;

namespace Comal.Classes
{
    [UserTracking(typeof(Invoice))]
    public class InvoiceReceipt : Entity, IPersistent, IRemotable, IManyToMany<Invoice, Receipt>, IManyToMany<Receipt, Invoice>, ILicense<AccountsReceivableLicense>
    {
        [EntityRelationship(DeleteAction.SetNull)]
        public InvoiceLink InvoiceLink { get; set; }

        [EntityRelationship(DeleteAction.Cascade)]
        public ReceiptLink ReceiptLink { get; set; }

        [TextBoxEditor]
        public string Notes { get; set; }

        [CurrencyEditor(Summary = Summary.Sum)]
        public double Amount { get; set; }

        protected override void Init()
        {
            base.Init();
            InvoiceLink = new InvoiceLink();
            InvoiceLink.PropertyChanged += InvoiceLinkChanged;
            ReceiptLink = new ReceiptLink();
        }

        private void InvoiceLinkChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName.Equals("Balance"))
                Amount = InvoiceLink.Balance;
        }
    }
}