Question

我有以下两种型号：

class Parent {
    static yell() {
        console.log('yell')
    }
}

class Child extends Parent {

}

Child.yell();

一旦＆＃34;警报＆＃34;对象属性中包含值，我试图使用EntityFramework将此对象嵌入到我的SQL DB中，如下所示：

public class Alert
{
    public int Id { get; set; }
    public DateTime AlertDatetime { get; set; }
    public bool Unread { get; set; }
    public int? ReadByUserId { get; set; }
    public DateTime? ReadDateTime { get; set; }
    public DateTime ImportDateTime { get; set; }
    public bool AlertHasRecords { get; set; }

    //Error Reporting and Recording.
    public bool Error { get; set; }
    public string ErrorText { get; set; }

    public virtual IEnumerable<AlertRecord> Records { get; set; }
}


public class AlertRecord
{
    public int Id { get; set; }
    public string HospitalNumber { get; set; }
    public string ForeName { get; set; }
    public string SurName { get; set; }
    public DateTime DateOfBirth { get; set; }
    public DateTime EventDateTime { get; set; }
    public string CrisNumber { get; set; }

    public DateTime CreationDateTime { get; set; }

    //Link it back to the master Alert!
    public int AlertId { get; set; }
    public virtual Alert Alert { get; set; }
}

AlertObjectFactory.cs和负责构建AlertRecords列表的类在这里（它们是大类文件） https://gist.github.com/anonymous/67a2ae0192257ac51f39

＆＃34;警报＆＃34;表中正在填充数据，但是有4条记录 IEnumerable Records 没有被插入...

EF可以实现此功能吗？

Answer 1

尝试将IEnumerable更改为实施ICollection的内容，例如List 有关详细信息，请参阅this答案

模型包含使用entityFramework的IEnumerable属性插入

1 个答案: