我正在 Asp.net Core 中開發一個 API。我有聯系人和職位模型。聯系人.cspublic class Contact{    [Key]    public int ContactId { get; set; }    //public string UserId { get; set; }    [Required]    [StringLength(20)]    public string FirstName { get; set; }    [StringLength(20)]    public string MiddleName { get; set; }    [Required]    [StringLength(20)]    public string LastName { get; set; }    [StringLength(60)]    public string FullName { get; set; }    [Required]    public Gender Gender { get; set; }    [Required]    public DateTime DateOfBirth { get; set; }    public MaritalStatus MaritalStatus { get; set; }    [Required]    public JobTitle JobTitle { get; set; }    [Required]    [EmailAddress]    [StringLength(50)]    public string Email { get; set; }    public int Phone { get; set; }    [Required]    public int Mobile { get; set; }    public string Address { get; set; }    public string Photo { get; set; }    public bool IsDeleted { get; set; }    public DateTime CreatedOn { get; set; }    public DateTime UpdatedOn { get; set; }}public enum Gender{    Male = 0,    Female = 1}public enum MaritalStatus{    Unmarried = 0,    Married = 1,    Divorced = 2,    Widowed = 3}職稱.cspublic class JobTitle{    [Key]    public int Id { get; set; }    [Required]    [StringLength(50)]    public string Name { get; set; }    [Required]    [StringLength(50)]    public string NameAr { get; set; }    public bool IsDeleted { get; set; }    public DateTime? CreatedOn { get; set; }    public DateTime? UpdatedOn { get; set; }    public virtual ICollection<Contact> Contact { get; set; }}我知道問題是 API 需要參考中的 jobtitle 對象，但我不知道如何給出它，因為它沒有達到我在 Visual Studio 中的后斷點。那么如何獲取 jobtitle 的值并進行轉換呢？