BackgroundWorker Registration

using System.Windows;
using System.ComponentModel;
using System.Diagnostics;

namespace BackgroundWorkerRegistration
{
    public partial class MainWindow : Window
    {
        private readonly BackgroundWorker mBackgroundWorker = new BackgroundWorker();

        public MainWindow()
        {
            InitializeComponent();
        }

        #region UI Event Handlers

        private void Worker1Button_Click(object sender, RoutedEventArgs e)
        {
            RegisterHandlers(Worker1_RunWorkerCompleted, Worker1_DoWork, Worker1_ProgressChanged);

            mBackgroundWorker.RunWorkerAsync();
        }

        private void Worker2Button_Click(object sender, RoutedEventArgs e)
        {
            RegisterHandlers(Worker2_RunWorkerCompleted, Worker2_DoWork, Worker2_ProgressChanged);

            mBackgroundWorker.RunWorkerAsync();
        }

        #endregion

        #region Registration

        private void RegisterHandlers(RunWorkerCompletedEventHandler workerCompletedHandler, DoWorkEventHandler doWorkHandler, ProgressChangedEventHandler progressChangedHandler)
        {
            mBackgroundWorker.RunWorkerCompleted += workerCompletedHandler;
            mBackgroundWorker.DoWork += doWorkHandler;
            mBackgroundWorker.ProgressChanged += progressChangedHandler;
        }

        private void UnregisterHandlers(RunWorkerCompletedEventHandler workerCompletedHandler, DoWorkEventHandler doWorkHandler, ProgressChangedEventHandler progressChangedHandler)
        {
            mBackgroundWorker.RunWorkerCompleted -= workerCompletedHandler;
            mBackgroundWorker.DoWork -= doWorkHandler;
            mBackgroundWorker.ProgressChanged -= progressChangedHandler;
        }

        #endregion

        #region Background Worker Event Handlers

        private void Worker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            UnregisterHandlers(Worker1_RunWorkerCompleted, Worker1_DoWork, Worker1_ProgressChanged);

            Debug.WriteLine("Worker 1: Run Worker Completed");
        }

        private void Worker1_DoWork(object sender, DoWorkEventArgs e)
        {
            Debug.WriteLine("Worker 1: Do Work");
        }

        private void Worker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            Debug.WriteLine("Worker 1: Progress Changed");
        }

        private void Worker2_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            UnregisterHandlers(Worker2_RunWorkerCompleted, Worker2_DoWork, Worker2_ProgressChanged);

            Debug.WriteLine("Worker 2: Run Worker Completed");
        }

        private void Worker2_DoWork(object sender, DoWorkEventArgs e)
        {
            Debug.WriteLine("Worker 2: Do Work");
        }

        private void Worker2_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            Debug.WriteLine("Worker 2: Progress Changed");
        }

        #endregion
    }
}