Entity framework 使用实体框架持久化模型绑定对象

我会尽量保持简短

我这里有我的控制器

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Edit(CustomObject myCustomObject)
{
     ...
}

myCustomObject看起来很棒的地方。但是，如果我想用实体框架保存它，我需要这样做

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Edit(CustomObject myCustomObject)
{
     CustomObject existingObject = repository.GetCustomObject(myCustomObject.ID);

     // Set all the attributes of myCustomObject to existingObject
     existingObject.SomeMapperFunction(myCustomObject)

     repository.Save();
}

有什么方法可以避免做这个映射练习吗

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Edit(int id)
{
     CustomObject existingObject = repository.GetCustomObject(id);

     TryUpdateModel(existingObject);
     // You additionaly can check the ModelState.IsValid here

     repository.Save();
}