使用实体框架保留模型绑定对象

Question

我会尽量保持简短。

我的控制器在这里...

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

myCustomObject 看起来很棒。但是，如果我想使用实体框架保存它，我需要做这样的事情......

[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();
}

有没有办法可以避免进行这种映射练习？

Answer 1

[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();
}