WCF和實體框架4.1 POCO

`我有下面的實體框架4.1模型。WCF和實體框架4.1 POCO

public partial class AWLTR2Model : DbContext 
{ 
    public AWLTR2Model() 
     : base("name=AWLTR2Model") 
    { 
     Configuration.ProxyCreationEnabled = false; 
    } 

    protected override void OnModelCreating(DbModelBuilder modelBuilder) 
    { 
     throw new UnintentionalCodeFirstException(); 
    } 

    public DbSet<Address> Addresses { get; set; } 
    public DbSet<Customer> Customers { get; set; } 
    public DbSet<CustomerAddress> CustomerAddresses { get; set; } 
}

我有下面這是在不同的命名空間AWLTR2.Entity

using System; 
using System.Collections.Generic; 
using System.Runtime.Serialization; 
public partial class CustomerAddress 
{ 

    public int CustomerID { get; set; } 
    public int AddressID { get; set; } 
    public string AddressType { get; set; } 
    public System.Guid rowguid { get; set; } 
    public System.DateTime ModifiedDate { get; set; } 

    public virtual Address Address { get; set; } 
    public virtual Customer Customer { get; set; } 

}

我暴露通過WCF服務，這些實體（basicHttpBinding的），但在我的客戶，我無法添加POCO實體子實體與下面的父實體相似。

Customer c = new Customer 
     { 
      FirstName = "xx", 
      CompanyName = "zz", 
      EmailAddress = "[email protected]", 
      LastName = "yy", 
      ModifiedDate = DateTime.Now, 
      NameStyle = false, 
      PasswordHash = "abcd", 
      PasswordSalt = "abcd", 
      Phone = "xx", 
      rowguid = System.Guid.NewGuid() 
     }; 

     CustomerAddress ca = new CustomerAddress 
     { 
      AddressID = 9 , 
      Customer = c , 
      AddressType ="Home Office", 
      ModifiedDate=System.DateTime.Now, 
      rowguid = System.Guid.NewGuid() 
     };

客戶端中缺少add方法，但我能夠在不公開WCF的情況下執行此操作。如下所示：。 c.CustomerAddresses.Add（ca）;

我想寫一個方法來一次添加客戶以及地址和客戶地址。我使用實體框架4.0與對象上下文一樣實現了同樣的功能。但在Dbcontext中無法這樣做。

任何線索？

來源

2012-03-05 Prakash Srinivasan