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ObservableCollection<T>.OnCollectionChanged Method (NotifyCollectionChangedEventArgs)


Raises the CollectionChanged event with the provided arguments.

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

protected virtual void OnCollectionChanged(
	NotifyCollectionChangedEventArgs e


Type: System.Collections.Specialized.NotifyCollectionChangedEventArgs

Arguments of the event being raised.

Properties and methods that modify this collection raise the CollectionChanged event through this virtual method.

When overriding this method, either call the base implementation or use the BlockReentrancy method to handle reentrant collection changes, as in the following example:

using (BlockReentrancy())
    // OnCollectionChanged call

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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