ObservableCollection<T>.OnCollectionChanged(NotifyCollectionChangedEventArgs) Método

Definição

Namespace:: System.Collections.ObjectModel

Assembly:: System.ObjectModel.dll

Assembly:: WindowsBase.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Cria o evento CollectionChanged com os argumentos fornecidos.Raises the CollectionChanged event with the provided arguments.

protected:
 virtual void OnCollectionChanged(System::Collections::Specialized::NotifyCollectionChangedEventArgs ^ e);

protected virtual void OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedEventArgs e);

abstract member OnCollectionChanged : System.Collections.Specialized.NotifyCollectionChangedEventArgs -> unit
override this.OnCollectionChanged : System.Collections.Specialized.NotifyCollectionChangedEventArgs -> unit

Protected Overridable Sub OnCollectionChanged (e As NotifyCollectionChangedEventArgs)

Parâmetros

e: NotifyCollectionChangedEventArgs

Argumentos do evento que está sendo criado.Arguments of the event being raised.

Exemplos

Ao substituir esse método, chame a implementação base ou use o BlockReentrancy método para tratar as alterações de coleção reentrante, como no exemplo a seguir: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
}

Using BlockReentrancy()
    ' OnCollectionChanged call
End Using

Comentários

Propriedades e métodos que modificam essa coleção geram o CollectionChanged evento por meio desse virtual método.Properties and methods that modify this collection raise the CollectionChanged event through this virtual method.

Aplica-se a