有一个使用 EF Code First 开发的 MVC3 应用程序。该解决方案内部有三个项目;ProjectName.Model、ProjectName.MVC、Project.Repository。在模型项目内的 POCO 类中,有一个“Man”类,“User”从该类继承。在加载“Create.cshml”时,显示以下错误:
错误 3032:从第 17、29 行开始映射片段时出现问题:EntityTypes ProjectName_Repository.Man,ProjectName_Repository.User 正在映射到表 Man 中的相同行。映射条件可用于区分这些类型映射到的行。
我浏览了以下链接:http ://weblogs.asp.net/manavi/archive/2010/12/24/inheritance-mapping-strategies-with-entity-framework-code-first-ctp5-part-1 -table-per-hierarchy-tph.aspx以及 http://forums.asp.net/t/1735718.aspx/1
但找不到有用的东西。
这是我的模型类:
public class Man
{
[Key]
[DatabaseGenerated(System.ComponentModel.DataAnnotations.Schema.DatabaseGeneratedOption.Identity)]
public long ID { get; set; }
//------------------------------------------------------------//
[Required, MaxLength(20)]
[LocalizedAttribute("FName")]
public string FName { get; set; }
//------------------------------------------------------------//
[Required, MaxLength(20)]
[LocalizedAttribute("LastName")]
public string LastName { get; set; }
//------------------------------------------------------------//
[Required]
[RegularExpression("^[0-9]+$", ErrorMessageResourceName = "ErrorNumberOnly", ErrorMessageResourceType = typeof(MAHAL_E_MA_Model.Properties.Resources))]
[LocalizedAttribute("Mobile")]
public string Mobile { get; set; }
//------------------------------------------------------------//
[LocalizedAttribute("Phone")]
[RegularExpression("^[0-9]+$", ErrorMessageResourceName = "ErrorNumberOnly", ErrorMessageResourceType = typeof(MAHAL_E_MA_Model.Properties.Resources))]
public string HomePhone { get; set; }
//------------------------------------------------------------//
[RegularExpression("^[0-9]+$")]
[LocalizedAttribute("IDCardNumber")]
public string IDCardNumber { get; set; }
//------------------------------------------------------------//
[RegularExpression("^[0-9]+$")]
[LocalizedAttribute("NationalCode")]
public string NationalCode { get; set; }
//------------------------------------------------------------//
[MaxLength(10)]
[LocalizedAttribute("DOB")]
public int DOB { get; set; }
//------------------------------------------------------------//
[Required]
public int CityID { get; set; }
[ForeignKey("CityID")]
[LocalizedAttribute("City")]
public virtual City CityParent { get; set; }
//------------------------------------------------------------//
[MaxLength(100)]
[LocalizedAttribute("Address")]
public string Address { get; set; }
//------------------------------------------------------------//
[LocalizedAttribute("PostalCode")]
public string PostalCode { get; set; }
//------------------------------------------------------------//
[MaxLength(255)]
[LocalizedAttribute("PhotoPath")]
public string PhotoPath { get; set; }
}
和派生类:
public class User : Man
{
[MaxLength(20)]
[LocalizedAttribute("Username")]
public string UserName { get; set; }
//------------------------------------------------------------//
[DataType(DataType.Password)]
[MaxLength(100), MinLength(6, ErrorMessageResourceType = typeof(MAHAL_E_MA_Model.Properties.Resources), ErrorMessageResourceName = "ErrorPasswordLength")]
[LocalizedAttribute("Password")]
public string Password { get; set; }
//------------------------------------------------------------//
[DataType(DataType.Password)]
[Compare("Password", ErrorMessageResourceType = typeof(MAHAL_E_MA_Model.Properties.Resources), ErrorMessageResourceName = "ErrorConfirmPassword")]
[LocalizedAttribute("ConfirmPassword")]
public string ConfirmPassword { get; set; }
//------------------------------------------------------------//
[DataType(DataType.EmailAddress, ErrorMessageResourceType = typeof(MAHAL_E_MA_Model.Properties.Resources), ErrorMessageResourceName = "ErrorEmailInvalid")]
[MaxLength(20)]
[RegularExpression(@"[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}")]
[LocalizedAttribute("Email")]
public string Email { get; set; }
//------------------------------------------------------------//
[MaxLength(30)]
[LocalizedAttribute("Title")]
public string Title { get; set; }
//------------------------------------------------------------//
[MaxLength(10)]
[LocalizedAttribute("HireDate")]
public int HireDate { get; set; }
//------------------------------------------------------------//
[LocalizedAttribute("ReportsTo")]
public long ReportsTo { get; set; }
[ForeignKey("ReportsTo")]
public virtual IList<User> ReportsChild { get; set; }
}
那么,任何人都可以帮助我解决这个问题吗?!感谢..