Dynamic LINQ to Entities Queries Using WCF/WPF Demo Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.Reflection;

namespace Service.Portal
{
    [ServiceBehavior(
        InstanceContextMode= InstanceContextMode.PerCall, 
        UseSynchronizationContext = false, 
        IncludeExceptionDetailInFaults =  
        DebugHelper.IncludeExceptionsInFaults)]
    public class Portal : IPortal
    {

        #region IPortal Members

        [OperationBehavior(Impersonation = ImpersonationOption.NotAllowed, 
            TransactionScopeRequired = true, TransactionAutoComplete = true)]
        public Response ExecuteRequest(Request request)
        {
            Response r = null;

            if (request == null)
                throw new ArgumentNullException("request");

            try
            {
                Object results = request.Execute();
                r = request.CreateResponse(results);
            }

            catch (ArgumentException argEx)
            {
                Console.WriteLine(String.Format("Server ArgumentException {0}", 
                    argEx.Message));

                throw new FaultException<ArgumentException>(
                    new ArgumentException(argEx.Message));
            }
            catch (ApplicationException appEx)
            {
                Console.WriteLine(String.Format("Server ApplicationException {0}", 
                    appEx.Message));

                throw new FaultException<ApplicationException>(
                    new ApplicationException(appEx.Message));
            }
            catch (Exception ex)
            {
                Console.WriteLine(String.Format("Server Exception {0}", 
                    ex.Message));

                throw new FaultException<Exception>(
                    new Exception(ex.Message));
            }


            return r;
        }

 

        #endregion

    }

    //simply debug class to IncludeExceptionsInFaults in debug mode
    public static class DebugHelper
    {
        public const bool IncludeExceptionsInFaults =
#if DEBUG
            true;
#else
        false;
#endif

    }

}