WCF服務未返回虛擬屬性ServiceProvider

Question

public class Account
{
    [DataMember]
    public int AccountId { get; set; }
    [DataMember]
    public string Email { get; set; }
    [DataMember]
    public string Password { get; set; }
    [DataMember]
    public string ConfirmPassword { get; set; }

    [ForeignKey("ServiceProvider")]
    [DataMember]
    public int ServiceProviderId { get; set; }
    [DataMember]
    public virtual ServiceProvider ServiceProvider { get; set; }
}

當嘗試

this.context.Configuration.LazyLoadingEnabled = false;
this.context.Configuration.ProxyCreationEnabled = false;

它將ServiceProvider返回為null

Answer 1

將急切加載與Include方法一起使用：

using System.Data.Entity;
//...
context.Accounts.Include(x => x.ServiceProvider).Where(...)

請參閱本主題以進行澄清： 首先關閉針對EF代碼的CTP5的ProxyCreationEnabled的不利之處