从ID通用列表中删除对象 [英] Remove object from generic list by id

问题描述

我有一个领域类是这样的：

I have a domain class like this:

public class DomainClass
{
  public virtual string name{get;set;}
  public virtual IList<Note> Notes{get;set;}
}

我怎么会去从删除项目在的IList<注意> ？我能做到这一点，如果它是一个清单，但它必须是一个的IList ，因为我使用NHibernate我的持久化层。

How would I go about removing an item from the IList<Note>? I would be able to do it if it was a List but it has to be an IList as I am using Nhibernate for my persistance layer.

在理想情况下，我想这样的方法在我的域类：

Ideally I wanted a method like this in my domain class:

public virtual void RemoveNote(int id)
{
   //remove the note from the list here

   List<Note> notes = (List<Note>)Notes

   notes.RemoveAll(delegate (Note note)
   {
       return (note.Id = id)
   });
}

但我不能投的的IList 为列表。有没有更优雅的方式这一轮？

But I can't cast the IList as a List. Is there a more elegant way round this?

推荐答案

您可以过滤掉不想要的物品，并创建一个新的列表只有项目你想：

You could filter out the items you don't want and create a new list with only the items you do want:

public virtual void RemoveNote(int id)
{
   //remove the note from the list here

   Notes = Notes.Where(note => note.Id != id).ToList();
}

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