ObservableCollection: AddRange and INotifyCollectionChanging – How Can I Efficiently Add Multiple Items and Implement Change Notifications?

Addressing ObservableCollection's AddRange Limitation

The standard ObservableCollection lacks a built-in AddRange method for efficient bulk addition of items. This necessitates adding elements one by one, impacting performance when dealing with large datasets. Fortunately, various libraries offer extended functionality to address this shortcoming.

Implementing INotifyCollectionChanging Effectively

To leverage the INotifyCollectionChanging interface within an ObservableCollection, consider creating a custom class inheriting from ObservableCollection. This custom class should override the collection manipulation methods (like Add, Remove, etc.) to trigger the CollectionChanging event before any modifications occur. This ensures proper change notification for bound UI elements.

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