非標準的非唯一外鍵

Question

由於我的數據庫設置（我沒有控制權）的方式，我有一個外鍵的情況，我無法弄清楚在實體框架。我正在使用Fluent API來配置我的關係。我的班是

public class Parent 
{ 
    // Unique primary key 
    public int PrimaryKey { get; set; } 

    // These two fields together compose the foreign key to join to Child 
    public string ParentForeignKey1 { get; set; } 
    public string ParentForeignKey2 { get; set; } 

    public List<Child> Children { get; set; } 
} 

public class Child 
{ 
    // Unique primary key 
    public int PrimaryKey { get; set; } 

    // These two fields together compose the (non-unique) foreign key to join to Parent 
    public string ChildForeignKey1 { get; set; } 
    public string ChildForeignKey2 { get; set; } 

    // The parent/child relationship is implicit, even though the tables 
    // themselves indicate a many-to-many relationship 
    public List<Parent> Parents { get; set; } 
} 

實體框架的關係應該是這樣的，兩個表上ParentForeignKey和ChildForeignKey領域加入像

SELECT * 
FROM Parent 
JOIN Child 
ON Child.ChildForeignKey1 = Parent.ParentForeignKey1 
AND Child.ChildForeignKey2 = Parent.ParentForeignKey2 

如何建立良好的API外鍵映射，使實體當我查詢DbSet時，框架會生成這些連接？

Answer 1

我想這更有意義

public class Parent 
{ 
    // The parent/child relationship is implicit, even though the tables 
    // themselves indicate a many-to-many relationship 
    public static List<Parent> Parents { get; set; } 


    // Unique primary key 
    public int PrimaryKey { get; set; } 

    // These two fields together compose the foreign key to join to Child 
    public string ParentForeignKey1 { get; set; } 
    public string ParentForeignKey2 { get; set; } 

    public List<Child> Children { get; set; } 
} 

public class Child 
{ 
    // Unique primary key 
    public int PrimaryKey { get; set; } 

    // These two fields together compose the (non-unique) foreign key to join to Parent 
    public string ChildForeignKey1 { get; set; } 
    public string ChildForeignKey2 { get; set; } 

}