C# 实体框架访问include和.thenClude中的数据

我不熟悉实体框架

我了解基本知识，但这里有点困惑

await Context.PremiseContacts
             .Include(c => c.Contact)
             .ThenInclude(c => c.ContactEmails)

假设我有这个代码

联系人在premise contacts中，然后联系人电子邮件在Contact中

我如何访问联系人电子邮件数据

我试过这个

Email = c.Contact.ContactEmails.,

当传递模型时，但这是我得到的很多选项，并且联系人电子邮件中应该有更多属性

基本上，您如何访问由.include定义的数据，然后如何访问由多个include/then include定义的数据

编辑

前提接触

namespace SolaceSecure.DAL.Models
{
    [Table("premiseContact")]
    public partial class PremiseContact
    {
        [Key]
        [Column("premiseId")]
        public Guid PremiseId { get; set; }
        [Key]
        [Column("contactId")]
        public Guid ContactId { get; set; }
        [Column("isSolaceUser")]
        public bool? IsSolaceUser { get; set; }

        public virtual Contact Contact { get; set; }
        public virtual Premise Premise { get; set; }
    }
}

接触

  public Contact()
        {
            ContactEmails = new HashSet<ContactEmail>();
            ContactPhoneNumbers = new HashSet<ContactPhoneNumber>();
            PremiseComplianceContacts = new HashSet<PremiseComplianceContact>();
            PremiseContacts = new HashSet<PremiseContact>();
        }

        [Key]
        [Column("contactId")]
        public Guid ContactId { get; set; }
        [Required]
        [Column("contactName")]
        [StringLength(100)]
        public string ContactName { get; set; }
        [Column("contactDescription")]
        [StringLength(250)]
        public string ContactDescription { get; set; }
        [Column("customerId")]
        public Guid CustomerId { get; set; }
        [Column("userId")]
        public Guid? UserId { get; set; }
        [Column("dateCreated", TypeName = "datetime")]
        public DateTime DateCreated { get; set; }
        [Column("dateModified", TypeName = "datetime")]
        public DateTime? DateModified { get; set; }
        [Column("modifiedBy")]
        public Guid? ModifiedBy { get; set; }
        [Column("isDeleted")]
        public bool IsDeleted { get; set; }
        [Column("createdBy")]
        public Guid? CreatedBy { get; set; }

        public virtual Person CreatedByNavigation { get; set; }
        public virtual Customer Customer { get; set; }
        public virtual Person ModifiedByNavigation { get; set; }
        public virtual Person User { get; set; }
        public virtual ICollection<ContactEmail> ContactEmails { get; set; }
        public virtual ICollection<ContactPhoneNumber> ContactPhoneNumbers { get; set; }
        public virtual ICollection<PremiseComplianceContact> PremiseComplianceContacts { get; set; }
        public virtual ICollection<PremiseContact> PremiseContacts { get; set; }

---

您还没有告诉我们，但它看起来像是

c.Contact.ContactEmails

将为您提供一组电子邮件对象，因此您不能像这样将其分配给

email

变量。你需要决定当你有多封联系人电子邮件时会发生什么。向我们展示class

PremiseContact

-我们看不到你的屏幕，无法神奇地阅读你的代码-你需要向我们展示相关的位（更新：），所以我希望能够访问联系人电子邮件中的所有属性，因为电子邮件只是一个字符串。

c

是一个字符串吗

PremiseContact

还是收藏？

{
    [Table("contactEmail")]
    public partial class ContactEmail
    {
        [Key]
        [Column("contactEmailId")]
        public Guid ContactEmailId { get; set; }
        [Required]
        [Column("email")]
        [StringLength(100)]
        public string Email { get; set; }
        [Column("contactId")]
        public Guid ContactId { get; set; }
        [Column("emailTypeId")]
        public Guid EmailTypeId { get; set; }

        public virtual Contact Contact { get; set; }
    }
}