CompositeCollection.CollectionChanged 事件
定义
重要
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集合更改时发生，方法是添加或删除项。
protected:
event System::Collections::Specialized::NotifyCollectionChangedEventHandler ^ CollectionChanged;protected event System.Collections.Specialized.NotifyCollectionChangedEventHandler CollectionChanged;member this.CollectionChanged : System.Collections.Specialized.NotifyCollectionChangedEventHandler Protected Custom Event CollectionChanged As NotifyCollectionChangedEventHandler Protected Event CollectionChanged As NotifyCollectionChangedEventHandler 