ProxySample/CrossCuttingConsole/NorthwindBusiness

NorthwindBusiness.cs

using System;
using System.Transactions;

namespace CrossCuttingConsole
{
    public class NorthwindBusiness : MarshalByRefObject
    {
        [TraceLog]
        [TransactionScope]
        public short SelectUnitsInStock()
        {
            Console.WriteLine("SelectUnitsInStock");

            // cf. https://sakapon.wordpress.com/2011/10/02/dirtyread2/
            using (var context = new NorthwindEntities())
            {
                var product = context.Products.Single(p => p.ProductID == 1);
                return product.UnitsInStock;
            }
        }

        [TraceLog]
        [TransactionScope(IsolationLevel.Serializable)]
        public void InsertCategory(string name)
        {
            Console.WriteLine("InsertCategory");

            // cf. https://sakapon.wordpress.com/2011/12/14/phantomread2/
            using (var context = new NorthwindEntities())
            {
                context.AddToCategories(Category.CreateCategory(0, name));
                context.SaveChanges();
            }
        }

        public int PropertyTest { get; [TraceLog]set; }

        [TraceLog]
        public void ErrorTest()
        {
            throw new InvalidOperationException("This is an error test.");
        }
    }
}

Program.cs

using System;

namespace CrossCuttingConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            var nw = CrossCuttingProxy.CreateProxy<NorthwindBusiness>();
            var units = nw.SelectUnitsInStock();
            nw.InsertCategory("Books");
            nw.PropertyTest = 123;
            try
            {
                nw.ErrorTest();
            }
            catch (Exception)
            {
            }
        }
    }
}