C#多重继承

Question

目前我正在使用 Code First Approach 学习 C# 和 ASP.NET MVC 4。我是 Visual Basic 开发人员，现在我想启动 C#。而且，现在我遇到了必须管理多重继承的情况。但是，我认为 Class 是不可能的。那么，我应该如何管理我拥有的这些类(class):

//I have the Following Person Class which Hold Common Properties 
//and a Type of Person e.g : Student, Faculty, Administrative
public class Person
{
    public int Id { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Type { get; set; }
}


//This is my Student Class, which is Derived from Person
public class Student : Person
{
    public DateTime DateOfBirth { get; set; }
    public DateTime EnrollmentDate { get; set; }
    public string Remarks { get; set; }

    public bool Approved { get; set; }
    public DateTime ApprovedDate { get; set; }
    public int ApprovedUserId { get; set; }
}


//This is my Faculty Class, which is also Derived from Person
public class Faculty : Person
{
    public DateTime HiredDate { get; set; }

    public bool Approved { get; set; }
    public DateTime ApprovedDate { get; set; }
    public int ApprovedUserId { get; set; }
}

我要制作的是 Approved，ApprovedDate 和 ApprovedUserId 也很常见。我想指定这些属性，例如:

 public class Approve {
    public bool Approved { get; set; }
    public DateTime ApprovedDate { get; set; }
    public int ApprovedUserId { get; set; }
}

而且，想像这样使用:

public class Student : Person, Approve
{
    public DateTime DateOfBirth { get; set; }
    public DateTime EnrollmentDate { get; set; }
    public string Remarks { get; set; }
}

而且，我不能把那些东西放在 PERSON 里面。因为，我必须将它用于另一个类，但那些不是 Person。

那么，我该如何实现...

请给我一个上述情况的例子。

请帮助。并且，非常感谢您。

Answer 1

一个可能的解决方案是修改您的层次结构:

public class PersonWithApprove : Person { // TODO: replace with non disgusting name
    public bool Approved { get; set; }
    // etc...
}

public class Student : PersonWithApprove {
}

public class Faculty : PersonWithApprove {
}

或者你可以创建一个接口(interface):

public interface IApprove {
    bool Approved { get; set; }
    // etc
}

public class Student : Person, IApprove {
}

您也可以保留 Approve 类，并让类具有该类型的属性:

public class Student : Person {
    Approve _approve = new Approve();
    public Approve Approve {
        get { return _approve; }
    }
}