Question

我只想在user和userdetails之间建立一对一的关系。首先使用实体框架代码。到目前为止我做了什么==＆gt;

public class User
{
    [Key]
    [Required(AllowEmptyStrings = false, ErrorMessage = "User Id Is Required!")]
    [MaxLength(12, ErrorMessage = "You Have Exceed The Max length Of User ID which is [12] character!")]
    [RegularExpression("[0-9]{2}-[0-9]{5}-[123]{1}|[0-9]{2}-[0-9]{7}-[123]{1}", ErrorMessage = "Invalid Id,It should [xx]-[xxxxx]-[x] or [xx]-[xxxxxxx]-[x]!")]
    [Display(Name = "User ID")]
    public string UserId { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Password Is Required!")]
    [MaxLength(20, ErrorMessage = "Password Max Length Is 20 Character!")]
    [DataType(DataType.Password)]
    [Display(Name = "Password")]
    public string password { get; set; }
    /// <summary>
    ///
    /// </summary>
    [MaxLength(100, ErrorMessage = "The Max Length For User Level Is 100 Character!")]
    [RegularExpression("^(?:admin|Admin|student|Student)$", ErrorMessage = "Invalid User Level!")]
    [Display(Name = "User Level")]
    public string level { get; set; }
    /// <summary>
    ///
    /// </summary>
    [NotMapped]
    [Display(Name="Remember Me")]
    public bool RememberMe { get; set; }

    //relationship with other table----
    public virtual UserDetail UserDetail { get; set; }
    public virtual ICollection<Financeofstudent> Financeofstudents { get; set; }
    public virtual ICollection<Studentassignbatche> Studentassignbatches { get; set; }
    [NotMapped]
    public StudentRegistrationViewModel StudentRegistrationViewModel { get; set; }
}

此处UserId是主键。这是用户在注册时提供的。

和我的userdetails表==＆gt;

public class UserDetail
{
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public int id { get; set; }
    /// <summary>
    ///
    /// </summary>
    [MaxLength(12, ErrorMessage = "You Have Exceed The Max length Of User ID which is 12 Character!")]
    [RegularExpression("[0-9]{2}-[0-9]{5}-[123]{1}|[0-9]{2}-[0-9]{7}-[123]{1}", ErrorMessage = "Invalid Id,It should [xx]-[xxxxx]-[x] or [xx]-[xxxxxxx]-[x]")]
    [Display(Name = "User ID")]
    public string UserId { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Full Name Is Required!")]
    [MaxLength(100, ErrorMessage = "The Max Length Of Full Name Is 100 Character!")]
    [DataType(DataType.Text, ErrorMessage = "Invalid Full Name!")]
    [Display(Name = "Full Name")]
    public string fullname { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "First Name IS Required!")]
    [MaxLength(50, ErrorMessage = "The Max Length Of First Name Is 50 Character!")]
    [DataType(DataType.Text, ErrorMessage = "Invalid First Name!")]
    [Display(Name = "First Name")]
    public string first_name { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Last Name Is Required!")]
    [MaxLength(50, ErrorMessage = "The Max Length Of Last Name is 50 Character!")]
    [DataType(DataType.Text, ErrorMessage = "Invalid Last Name!")]
    [Display(Name = "Last Name")]
    public string last_name { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Pic Is Required!")]
    [MaxLength(700, ErrorMessage = "Your Destined Pic Path Is Too Much Long.The Max Length Of Picture Path Is 700 Character!")]
    [Display(Name = "Profile Pic")]
    public string pic_path { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Display(Name = "Company Name")]
    public string company_name { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Display(Name = "City")]
    public string city { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Phone Number Is Required!")]
    [DataType(DataType.PhoneNumber, ErrorMessage = "Invalid Phone Number!")]
    [Display(Name = "Phone Number")]
    [Remote("IsPhoneNumberAvailable", "Students", AdditionalFields = "InitialPhoneNumberValue", ErrorMessage = "Phone Number IS Already Taken! Please Choose A Unique One!")]
    public int phone_number { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Email Is Required!")]
    [EmailAddress(ErrorMessage = "Invalid Email Address!")]
    [Display(Name = "Email Address")]
    [Remote("IsEmailAvailable", "Students", AdditionalFields = "InitialEmailValue", ErrorMessage = "Email Address IS Already Taken! Please Choose A Unique One!")]
    public string email { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Zip Code Is Required!")]
    [RegularExpression("^[0-9]{4,5}$", ErrorMessage = "Invalid Zip Code!")]
    [Display(Name = "Zip Code")]
    public int zip_code { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Nationality Is Required!")]
    [MaxLength(30, ErrorMessage = "The Max Length Of Nationality Is 30 Character!")]
    [DataType(DataType.Text, ErrorMessage = "Invalid Nationality!")]
    [Display(Name = "User Nationality")]
    public string nationality { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Gender Is Required!")]
    [RegularExpression("^(?:m|M|male|Male|f|F|female|Female)$", ErrorMessage = "Invalid Gender!")]
    [Display(Name = "Gender")]
    public string sex { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Religion Is Required!")]
    [MaxLength(20, ErrorMessage = "The Max Length Of Religion is 20 Character!")]
    [DataType(DataType.Text, ErrorMessage = "Invalid Religion!")]
    [RegularExpression("^[a-zA-Z]*$", ErrorMessage = "Invalid Religion!")]
    [Display(Name = "Religion")]
    public string religion { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Blood Group Is Required!")]
    [MaxLength(50, ErrorMessage = "The Max Length Of Blood Group Is 50 character!")]
    [Display(Name = "Blood Group")]
    public string blood_group { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "Date Of Birth Is Required!")]
    [DataType(DataType.Date, ErrorMessage = "Invalid Date Of Birth")]
    [Display(Name = "Date Of Birth")]
    public DateTime dob { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "User Activation Is Required!")]
    [DataType(DataType.Date, ErrorMessage = "Invalid Date!")]
    [Display(Name = "User Activation Date")]
    public DateTime user_activation_date { get; set; }
    /// <summary>
    ///
    /// </summary>
    [DataType(DataType.Date, ErrorMessage = "Invalid Date!")]
    [Display(Name = "User Deactivation Date")]
    public Nullable<DateTime> user_deactivation_date { get; set; }
    /// <summary>
    ///
    /// </summary>
    [Required(AllowEmptyStrings = false, ErrorMessage = "User Current Status Is Required!")]
    [RegularExpression("^(?:active|Active|inactive|Inactive)$", ErrorMessage = "Invalid Status!")]
    [Display(Name = "User Current Status")]
    public string user_active { get; set; }

    //relationshipwith other tables-----

    public virtual User User { get; set; }
}

<{1}}中的

是主键并自动生成。

乳清我正在尝试构建它，它给我一个错误，如下面==＆gt;

userdetails

我使用Documentation来编写代码。

尝试使用Unable to determine the principal end of an association between the types 'TSMS_Atp_2_Final_Project.Models.Com.Tsms.UserDetail' and 'TSMS_Atp_2_Final_Project.Models.Com.Tsms.User'. The principal end of this association must be explicitly configured using either the relationship fluent API or data annotations.中的某种不同方式，如下所示==＆gt;

userdetails

但它也会出现类似下面的错误=＆gt;

该物业＆＃39; UserId＆＃39;无法配置为导航属性。该属性必须是有效的实体类型，并且该属性应具有非抽象的getter和setter。对于集合属性，类型必须实现ICollection，其中T是有效的实体类型。

在实体框架中配置一对一关系？

0 个答案: