由绑定列表组成的 C# 绑定列表
有没有一种简单的方法可以让一个由多个绑定列表组成的绑定列表？即，这是列表的“视图”。
也就是说：我有3个列表（list1，list2，list3）。我想要一个始终是 3 个 listx 的并集的列表（我们可以假设 2 个不同的列表中不包含任何对象）。
当然，我可以成功使用 ListChange 属性，但也许有更聪明的方法来做到这一点？
Is there a simple way to have a bindinglist composed of several bindinglists? i.e. that is the "view" of the lists.
That is to say: I have 3 lists (list1,list2,list3). I want a list that is always the union of the 3 listx (we can suppose that no object is contained in 2 different lists).
Certainly, I can succeed in using the ListChange property but maybe there is a smarter way to do this?
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为此，您需要创建自己的类型，实现
IList、IBindingList（最好是IBindingListView）以及可选的ICancelAddNew< /code> 和IRaiseItemChangedEvents。您还需要一个公共非对象索引器 (public T this[int index] {get;}) 或ITypedList。由于做过与此类似的事情，我强烈建议您；不要这样做，除非这确实很重要。将引用复制到新的
BindingList中会更实用。还;与新项目；它会进入哪个列表？
To do this you would need to create your own type, implement
IList,IBindingList(and ideallyIBindingListView), and optionallyICancelAddNewandIRaiseItemChangedEvents. You'd also need either a public non-object indexer (public T this[int index] {get;}) orITypedList.From having done things similar to this, I strongly advise you; don't, unless this is really important. It would be more pragmatic to copy the references into a new
BindingList<>.Also; with new items; which list would it go into?
您是否研究过 CompositeCollection 类？
根据您尝试执行的操作，它可能会有所帮助：其目的是将多个集合合并为一个集合（通常用于显示/绑定目的）。因此，您可以创建一个 CompositeCollection 并向其中添加三个 BindingList 实例。
CompositeCollection将自动更新以包含“子”列表的成员。Have you looked into the CompositeCollection class?
Depending on what you're trying to do, it might help: its purpose is to combine multiple collections into a single collection (typically for display/binding purposes). So, you could create a
CompositeCollectionand add your threeBindingListinstances to it. TheCompositeCollectionwill automatically update to include the members of the "child" lists.