BackgroundWorker in Silverlight

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightClassLibrary.Threading
{  

    /// <summary>
    /// <para>Represents the method that will handle the <see cref="BackgroundWorker.DoWork"/> event.</para>
    /// </summary>
    /// <param name="sender">The source of the event.</param>
    /// <param name="e">A <see cref="DoWorkEventArgs"/> that contains the event data.</param>
    public delegate void DoWorkEventHandler(object sender, DoWorkEventArgs e);

}