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CollectionChanged Event
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ObservableCollection<T>.CollectionChanged Event

Occurs when an item is added, removed, changed, moved, or the entire list is refreshed.

Namespace:  System.Collections.ObjectModel
Assemblies:   System.ObjectModel (in System.ObjectModel.dll)
  System (in System.dll)

public virtual event NotifyCollectionChangedEventHandler CollectionChanged

Implements

INotifyCollectionChanged.CollectionChanged

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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