CloudQueue.BeginClear Method

using System;
using Microsoft.WindowsAzure;
using Microsoft.WindowsAzure.StorageClient;

namespace QueueAsyncExample
{
  public class QueueAsyncStateExample
  {
    public CloudQueue queueObject;
    public object customStateInformation;

    // Constructor for the example state class
    public QueueAsyncStateExample( CloudQueue queue, object yourAdditionalStateObject )
    {
      this.queueObject = queue;
      this.customStateInformation = yourAdditionalStateObject;
    }

    // Static call that starts clearing the queue
    static void ClearQueueAsync( CloudQueue queue, object stateObject )
    {
      queue.BeginClear( QueueClearCallback,
                        new QueueAsyncStateExample( queue, stateObject ) );
    }

    // The callback method that is called once the clear operation is complete
    static void QueueClearCallback( IAsyncResult opResult )
    {
      QueueAsyncStateExample state = (QueueAsyncStateExample) opResult.AsyncState;
      CloudQueue queue = state.queueObject;
      // End the BeginClear operation
      queue.EndClear( opResult );
      // ...other asynchronous operations could be started here if appropriate
    }
  }
}