EF如何具有多对一关系？

Question

上下文：

我有关系

class Service {
   public virtual int Sequencial { get; set; }
   public virtual string Name { get; set; }
   public virtual ServiceType Type { get; set; }
   ...
}

class ServiceType {
   public virtual int Sequencial { get; set; }
   public virtual string Name { get; set; }
}

在NHibernate类中看起来像这样

Id（s => s.Sequencial， “ SERVICE_ID”）。GeneratedBy.Sequence（“ SQ_SERVICE_ID”）;
引用（s => s.ServiceType，“ SERVICE_TYPE_ID”）；
地图（a => a.Nome，“ SERVICE_NAME”）;
...

我如何实现 References（s => s.ServiceType，“ SERVICE_TYPE_ID”），换句话说，如何在EF中实现多对一？

Answer 1

class Service {
   public virtual int Sequencial { get; set; }
   public virtual string Name { get; set; }
   public virtual ServiceType Type { get; set; }
 }

class ServiceType {
  public virtual int Sequencial { get; set; }
  public virtual string Name { get; set; }
  public IList<Service> Services{get;set;}
 }

使用这两个链接获得更多指导

asp

https://www.entityframeworktutorial.net/code-first/configure-one-to-many-relationship-in-code-first.aspx

asp核心

https://www.entityframeworktutorial.net/efcore/one-to-many-conventions-entity-framework-core.aspx