преобразование вида сервера sql в linq

Question

Я не уверен, что это правильный форум, если нет, переместите его. Мой офис находится в процессе переписывания нашего приложения и перехода с VB на C # и структуру сущностей.У меня был некоторый успех в объединении нескольких таблиц с левыми внешними объединениями, но я нахожусь в своих пределах, как преобразовать представление SQL следующим образом:

SELECT        dbo.Addresses.AddressId, dbo.AddressTypes.AddressType, dbo.Addresses.AddressTypeId, dbo.Addresses.ParentAddressId, dbo.Addresses.AddressCode, dbo.Addresses.AddressNumber, dbo.Addresses.Address, 
                         dbo.Addresses.SubAddress, dbo.Addresses.Direction, dbo.Addresses.City, dbo.Addresses.StateId, dbo.Addresses.CountryId, ISNULL(dbo.Addresses.AddressNumber + ' ', '') + ISNULL(dbo.Addresses.Direction + ' ', '') 
                         + ISNULL(dbo.Addresses.Address + ' ', '') + ISNULL(dbo.Addresses.Suffix + ' ', '') + ISNULL(dbo.Addresses.SubAddress + ' ', '') AS FullAddress, dbo.Addresses.RegionId, dbo.Addresses.CountyId, 
                         dbo.Addresses.OccupancyTypeId, dbo.Addresses.PropertyUseTypeId, dbo.Addresses.Comment, dbo.States.StateAbbr, dbo.States.State, dbo.Regions.Region, dbo.Regions.RegionCode, dbo.Counties.County, 
                         dbo.Counties.CountyCode, dbo.Countries.Country, dbo.OccupancyTypes.OccupancyType, dbo.OccupancyTypes.OccupancyTypeCode, dbo.PropertyUseTypes.PropertyUseType, dbo.Party.PartyName, 
                         dbo.PropertyUseTypes.PropertyUseTypeCode, dbo.UserDefFields.UserDefFieldId, dbo.UserDefFields.FieldDesc, dbo.UserDefValues.UserDefValueId, dbo.UserDefValues.UserDefValue, dbo.Addresses.ZipId, dbo.Zips.Zip, 
                         dbo.AddressParties.PartyID, dbo.Addresses.Latitude, dbo.Addresses.Longitude, dbo.Addresses.Inactive, dbo.Addresses.DefaultPass, dbo.Addresses.Suffix, dbo.AddressTypes.AgencyId, dbo.Addresses.LegalDesc, 
                         dbo.AddressParties.Inactive AS PAInactive, dbo.AddressParties.RoleTypeId, dbo.Addresses.POBox, dbo.AddressParties.ExternalValue, dbo.Addresses.DateUpdated, dbo.Addresses.DateInserted, dbo.Addresses.ReportId, 
                         dbo.Addresses.Map, dbo.Addresses.Block, dbo.Addresses.Lot, dbo.Addresses.TaxParcel, dbo.Addresses.ExternalId, dbo.Addresses.Schedule
FROM            dbo.UserDefFields RIGHT OUTER JOIN
                         dbo.UserDefValues ON dbo.UserDefFields.UserDefFieldId = dbo.UserDefValues.UserDefFieldId RIGHT OUTER JOIN
                         dbo.Party RIGHT OUTER JOIN
                         dbo.Addresses LEFT OUTER JOIN
                         dbo.Zips ON dbo.Addresses.ZipId = dbo.Zips.ZipId LEFT OUTER JOIN
                         dbo.AddressTypes ON dbo.Addresses.AddressTypeId = dbo.AddressTypes.AddressTypeId LEFT OUTER JOIN
                         dbo.States ON dbo.Addresses.StateId = dbo.States.StateId LEFT OUTER JOIN
                         dbo.Regions ON dbo.Addresses.RegionId = dbo.Regions.RegionId LEFT OUTER JOIN
                         dbo.Counties ON dbo.Addresses.CountyId = dbo.Counties.CountyId LEFT OUTER JOIN
                         dbo.Countries ON dbo.Addresses.CountryId = dbo.Countries.CountryId LEFT OUTER JOIN
                         dbo.OccupancyTypes ON dbo.Addresses.OccupancyTypeId = dbo.OccupancyTypes.OccupancyTypeId LEFT OUTER JOIN
                         dbo.PropertyUseTypes ON dbo.Addresses.PropertyUseTypeId = dbo.PropertyUseTypes.PropertyUseTypeId LEFT OUTER JOIN
                         dbo.AddressParties ON dbo.Addresses.AddressId = dbo.AddressParties.AddressID ON dbo.Party.PartyID = dbo.AddressParties.PartyID ON dbo.UserDefValues.RecordId = dbo.Addresses.AddressId

во что-то вроде следующего:

   public List<AddressPartyList> GetAddressPartyList(Guid? AddressId, Guid? RoleTypeId = null, bool ShowInactive = false, bool FromWebOnly = false, bool WebAcceptedOnly = false, bool WebRejectedOnly = false)
    {
        IQueryable<AddressPartyList> thisList;

        thisList = myappContext.myappData().AddressParties.Join(
                   myappContext.myappData().RoleTypes, ap => ap.RoleTypeId, rt => rt.RoleTypeId, (ap, rt) => new { ap, rt }).Join(
                   myappContext.myappData().Parties, apr => apr.ap.PartyId, p => p.PartyId, (apr, p) => new AddressPartyList
                   {
                       AddressId =  apr.ap.AddressId,
                       PartyId = apr.ap.PartyId,
                       AccountId =  p.AccountId,
                       RoleType =  apr.rt.RoleType1,
                       Salutation = p.Salutation,
                       FirstName = p.FirstName,
                       MiddleInitial = p.MiddleInitial,
                       LastName = p.LastName,
                       Suffix = p.Suffix,
                       PartyName = p.PartyName,
                       Email = p.Email,
                       Comment = p.Comment,
                       ExternalId = p.ExternalId,
                       PartyInactive = p.Inactive,
                       WebAccountId = p.WebAccountId,
                       DateUpdated = p.DateUpdated,
                       DateInserted = p.DateInserted,
                       PriceLevel = p.PriceLevel,
                       FromWeb = p.FromWeb,
                       WebAccepted = p.WebAccepted,
                       WebRejected = p.WebRejected,
                       RoleTypeId = apr.ap.RoleTypeId,
                       InactiveAtAddress = apr.ap.Inactive,
                       IsBus = p.IsBus,
                       Sequence = apr.ap.Sequence,
                       AddressPartyId = apr.ap.AddressPartyId

                   }).Where(p => p.AddressId == AddressId);


        if (!ShowInactive)
        {
            thisList = thisList.Where(p => p.PartyInactive == false && p.InactiveAtAddress == false);
        }

        if (RoleTypeId != null)
        {
            thisList = thisList.Where(p => p.RoleTypeId == RoleTypeId);
        }

        if (FromWebOnly)
        {
            thisList = thisList.Where(p => p.FromWeb == true);
        }
        if (WebAcceptedOnly)
        {
            thisList = thisList.Where(p => p.WebAccepted == true);
        }
        if (WebRejectedOnly)
        {
            thisList = thisList.Where(p => p.WebRejected == true);
        }

        return thisList.GroupBy(p => p.PartyId).Select(p => p.FirstOrDefault()).OrderBy(p => p.Sequence).ThenBy(p => p.PartyName).ToList();
    }

Любая помощь будет оценена.Кроме того, каков будет синтаксис для представления с несколькими правыми и левыми внешними объединениями.Я не кодировал это, я просто пытаюсь преобразовать это, и я понимаю, что лучше использовать левые внешние соединения.Спасибо.