将Backgroundworkerclass替换为worker线程

我已经使用Backgroundworkerclass来更新我的用户界面元素（Label）。请请检查下面的代码。它运行良好。但我正试图取代Backgroundworkerclass，并使用简单的worker线程来实现同样的目标。我怎样才能做到这一点？任何建议都将不胜感激。感谢

public void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        label1.Text = e.ProgressPercentage.ToString();
    }
    private void button1_Click(object sender, EventArgs e)
    {
        if (!backgroundWorker1.IsBusy)
            backgroundWorker1.RunWorkerAsync();
        else
            label1.Text = "Busy Processing";
    }
    private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
        for (int i = 0; i <= 100; i++)
        {
            Thread.Sleep(100);
            backgroundWorker1.ReportProgress(i);
            if (backgroundWorker1.CancellationPending)
            {
                e.Cancel = true;
                backgroundWorker1.ReportProgress(0);
                return;
            }
        }
    }
    private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        label1.Text = e.ProgressPercentage.ToString();
    }

delegate void DelegateDoWork(int number);
    private void button1_Click(object sender, EventArgs e)
    {
        new Thread(DoWork).Start();
    }
    public void ProgressBar(int i)
    {
        if (label1.InvokeRequired)
        {
            var d = new DelegateDoWork(ProgressBar);
            this.Invoke(d, i);
        }
        else
            label1.Text = i.ToString();
    }
    public void DoWork()
    {
        for (int i = 0; i <= 100; i++)
        {
            Thread.Sleep(100);
            ProgressBar(i);
        }
    }