LINQ to SQL Association 1 to N

Question

如果表UsersInRoles是關係表，我可以如何更改此數據映射。 （例如，userId = 3，返回5行）。

private EntityRef<UserInRoles> roles; 
[Association(Storage = "UsersInRoles", ThisKey = "UserId")] 
public UserInRoles Roles 
{ 
    get { return this.roles.Entity; } 
    set { this.roles.Entity = value; } 
} 

THX

Answer 1

使用EntitySet的代替的EntityRef。

private EntitySet<UserInRoles> _roles; 

[Association(Storage="_roles", ThisKey="UserId", OtherKey="UserId")] 
public EntitySet<UserInRoles> Roles 
{ 
    get 
    { 
    return this._roles; 
    } 
    set 
    { 
    this._roles.Assign(value); 
    } 
}