using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Windows.Forms;
using MercatorApi;
using MercatorUi;

namespace Billing
{
    public class Customizer : MercatorUi.ICustomizers.IBillingEngineCreated, MercatorUi.ICustomizers.IBillingEngineClosed
    {

        public void BillingEngineCreated(MercatorUi.Engine.Gescom.BillingEngine BillingEngine)
        {
            BillingEngine.BeforeSave += BillingEngine_BeforeSave;
        }

        public void BillingEngineClosed(MercatorUi.Engine.Gescom.BillingEngine BillingEngine)
        {
            BillingEngine.BeforeSave -= BillingEngine_BeforeSave;
        }

        void BillingEngine_BeforeSave(object sender, MercatorUi.Engine.Gescom.BillingEngine.BeforeSaveEventArgs e)
        {
            ...
        }
    }
}