partial class NorthwindEFEntities

{

    public IQueryable<Member> Members

    {

        get { return Customers.OfType<Member>(); }

    }

}

<ComplexType Name="Address">

  <Property Name="Adress" Type="String" MaxLength="60" Nullable="true" />

  <Property Name="City" Type="String" MaxLength="15" Nullable="true" />

  <Property Name="Region" Type="String" MaxLength="15" Nullable="true" />

  <Property Name="PostalCode" Type="String" MaxLength="10" Nullable="true" />

  <Property Name="Country" Type="String" MaxLength="15" Nullable="true" />

</ComplexType>

<EntityType Name="Customer">

  <Key>

    <PropertyRef Name="CustomerID" />

  </Key>

  <Property Name="CustomerID" Type="String" Nullable="false" MaxLength="5" FixedLength="true" />

  <Property Name="CompanyName" Type="String" Nullable="false" MaxLength="40" />

  <Property Name="ContactName" Type="String" MaxLength="30" />

  <Property Name="ContactTitle" Type="String" MaxLength="30" />

  <Property Name="Address" Type="Self.Address" Nullable="false" />

  <Property Name="Phone" Type="String" MaxLength="24" />

  <Property Name="Fax" Type="String" MaxLength="24" />

  <NavigationProperty Name="Orders" Relationship="NorthwindEFModel.FK_Orders_Customers" 

                      FromRole="Customers" ToRole="Orders" />

  <NavigationProperty Name="CustomerDemographics" Relationship="NorthwindEFModel.CustomerCustomerDemo" 

                      FromRole="Customers" ToRole="CustomerDemographics" />

</EntityType>

<EntitySetMapping Name="Customers">

  <EntityTypeMapping TypeName="IsTypeOf(NorthwindEFModel.Customer)">

    <MappingFragment StoreEntitySet="Customers">

      <ScalarProperty Name="CustomerID" ColumnName="CustomerID" />

      <ScalarProperty Name="CompanyName" ColumnName="CompanyName" />

      <ScalarProperty Name="ContactName" ColumnName="ContactName" />

      <ScalarProperty Name="ContactTitle" ColumnName="ContactTitle" />

      <ComplexProperty Name="Address" TypeName="NorthwindEFModel.Address">

        <ScalarProperty Name="Adress" ColumnName="Address" />

        <ScalarProperty Name="City" ColumnName="City" />

        <ScalarProperty Name="Region" ColumnName="Region" />

        <ScalarProperty Name="PostalCode" ColumnName="PostalCode" />

        <ScalarProperty Name="Country" ColumnName="Country" />

      </ComplexProperty>

      <ScalarProperty Name="Phone" ColumnName="Phone" />

      <ScalarProperty Name="Fax" ColumnName="Fax" />

    </MappingFragment>

  </EntityTypeMapping>

</EntitySetMapping>

partial class Address

{

    partial void OnPostalCodeChanging(string value)

    {

        Validate(value, Country);

    }

    partial void OnCountryChanging(string value)

    {

        Validate(PostalCode, value);

    }

    private void Validate(string postal, string country)

    {

        if (string.IsNullOrEmpty(postal) || string.IsNullOrEmpty(country))

            return;

        switch (country.ToUpper())

        {

            case "FRANCE":

                if (!Regex.IsMatch(postal, PostalPatterns.FrancePattern))

                    throw new PostalCountryException { PostalCode = postal, Country = country };

                break;

        }

    }

    public class PostalCountryException : InvalidOperationException

    {

        public string PostalCode { get; set; }

        public string Country { get; set; }

    }

}