CollectionChanged Event (ReadOnlyNotifyCollection<T>)

Raised when the collection's contents change.

Syntax

C#

public event NotifyCollectionChangedEventHandler CollectionChanged

Event Data

The event handler receives an argument of type NotifyCollectionChangedEventArgs containing data related to this event. The following NotifyCollectionChangedEventArgs properties provide information specific to this event.

Property	Description
Action
NewItems
NewStartingIndex
OldItems
OldStartingIndex

Requirements

Target Platforms: Android 4.4+, iOS 8+

Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+