protected void applyProgress(ProgressBar progress, ProgressChangedEventArgs e)
        {
            if(e.message!=null)
                progress.Text = e.message;
            progress.Sensitive = e.state== ProgressState.None;
            //progress.
            //progress.IsIndeterminate = e.state== ProgressState.Indeterminate;
            switch(e.state) {
                case ProgressState.Normal:
                    //progress.Foreground = default_progress_color;
                    break;
                case ProgressState.Error:
                    //progress.Foreground = Brushes.Red;
                    break;
                case ProgressState.Wait:
                    //progress.Foreground = Brushes.Yellow;
                    break;
            }

            progress.Visible = true;
            if(e.max==0)
                progress.Fraction = 0;
            else {
                progress.Fraction = (double)e.max/(double)e.value;
            }
        }

 void bw_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     progressBar1.Maximum = 100;
     progressBar1.Value = e.ProgressPercentage;
     // show downloading message
     SetLabel(line1, string.Format(Properties.Resources.ID_DOWNLOADINGFILE, downloadFile, e.ProgressPercentage));
 }

 private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     // Change the value of the ProgressBar to the BackgroundWorker progress.
     progressBar1.Value = e.ProgressPercentage;
     // Set the text.
     this.Text = e.ProgressPercentage.ToString();
 }

        //void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        //{
        //    this.Close();//执行完之后，直接关闭页面
        //}

        void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            this.progressBar.Value = e.ProgressPercentage;
            this.labelText.Text = (null != e.UserState) ? e.UserState.ToString() : "";
            //this.progressBar1.Value = e.ProgressPercentage;
            //this.textBox1.AppendText(e.UserState.ToString());//主窗体传过来的值，通过e.UserState.ToString()来接受
        }

      void bg_ProgressChanged(object sender, ProgressChangedEventArgs e)
      {
         progressBar1.Value = e.ProgressPercentage;

         GPoint p = (GPoint)e.UserState;
         this.Text = "Static Map maker: Downloading[" + p + "]: " + tileArea.IndexOf(p) + " of " + tileArea.Count;
      }

 private void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     if (UploadFileProgressChangedToDo != null)
     {
         UploadFileProgressChangedToDo(null, new AltProgressChangedEventArgs(e.ProgressPercentage / 2));
     }
 }

 private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     progressBar1.Value = e.ProgressPercentage;
     PedigreeSymbolRow psr = (PedigreeSymbolRow)e.UserState;
     flowLayoutPanel1.Controls.Add(psr);
     label1.Text = flowLayoutPanel1.Controls.Count.ToString();
 }

    public void ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
      if (e.UserState is WorkerProgressUserState)
      {
        var eState = (WorkerProgressUserState)e.UserState;
        if (eState.IsProgress)
        {
          int progressBarIndex = Math.Min(eState.ProgressBarIndex, this.progressBars.Length - 1);
          var pb = this.progressBars[progressBarIndex];
          if (eState.ProgressValue >= 100)
          {
            pb.Value = 100;
          }
          else
          {
            pb.Value = (int)eState.ProgressValue;
          }
        }
        else
        {
          AddLine(eState.LabelText);
        }
      }

      if (e.UserState is string)
      {
        AddLine((string)e.UserState);
      }

      this.progressBars[0].Value = e.ProgressPercentage;
    }

 private void OnUploadProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     if (ProgressChanged != null)
     {
         ProgressChanged(sender, e);
     }
 }

 private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     progressBar1.Value = e.ProgressPercentage;
     ActiveSurveyRow asr = (ActiveSurveyRow)e.UserState;
     flowLayoutPanel1.Controls.Add(asr);
     loadCountLabel.Text = flowLayoutPanel1.Controls.Count.ToString();
 }

        private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            curDiv += 1;

            string s = (string)e.UserState;
            label5.Text = curDiv.ToString() + " / " + divCount.ToString() + " : " +  s;
        }

 private void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     if(progressBar.Value != e.ProgressPercentage)
         progressBar.Value = e.ProgressPercentage;
     if (e.UserState != null)
         label.Text = string.Format(MessageFormat, e.UserState);
 }

        public static void GetDevieBackgroundWorkerOnProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            CheckedListBox c = (CheckedListBox)_o[0];
            Button stb = (Button)_o[1];

            if (Device.Count == 0)
            {
                c.Items.Clear();
                stb.Enabled = false;
            }
            else
            {
                foreach (string de in Device)
                {
                    if (!c.Items.Contains(de))
                        c.Items.Add(de);
                }
                List<string> del = (from string s in c.Items where !Device.Contains(s) select s).ToList();
                // ReSharper disable once ForCanBeConvertedToForeach
                for (int i = 0; i < del.Count; i++)
                {
                    c.Items.Remove(del[i]);
                }
                stb.Enabled = true;
            }
        }

 private void OnProcessingProgress(ProgressChangedEventArgs e)
 {
     if (Progress != null)
     {
         Progress(this, e);
     }
 }

 void downBackgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     if (ProgressChanged != null)
     {
         ProgressChanged(e.ProgressPercentage);
     }
 }

 private void bw_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     if (FileCheckProgressChanged != null)
     {
         FileCheckProgressChanged((float)e.UserState);
     }
 }

 private void Background_worker_infinit_Update_Queen(object sender, ProgressChangedEventArgs e)
 {
     if (top_fitness_ != e.ProgressPercentage) {
         top_fitness_ = e.ProgressPercentage;
         DrawQueens(genetic_algoithm_.GetTop() as NQueenGene);
     }
 }

		protected void ProgressChanged(object sender, ProgressChangedEventArgs e)
		{
			if (e.UserState is ProgressChangedArgs)
			{
				ProgressChangedArgs args = (ProgressChangedArgs)e.UserState;
				args.main.SetMaxProgress(args.maxProgress);
				if (args.header.Length > 0)
				{
					args.main.SetHeader(args.header);
				}
				if (args.message.Length > 0)
				{
					args.main.SetMessage(args.message);
				}
				if (e.ProgressPercentage < 0)
				{
					args.main.IncrementProgress();
				}
				else
				{
					args.main.SetProgress(e.ProgressPercentage);
				}
			}
			else if (e.UserState is Installer)
			{
				(e.UserState as Installer).IncrementProgress();
			}
			updating = false;
		}

 private void ScannerProgressChanged(object sender, ProgressChangedEventArgs e)
 {
     var state = (RepositoryScannerState)e.UserState;
     View.SetCurrentRepository(state.CurrentRepository);
     View.SetCurrentPath(state.CurrentPath);
     View.SetProgress(e.ProgressPercentage);
 }

        public void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            string con;
            if (e.ProgressPercentage == 1)
                button1.Enabled = true;

            if (checkBox1.Checked==true)
            {
                try
                {
                    transfer tr = (transfer)e.UserState;
                    con = tr.SourceDns + "     " + tr.DestDns + " " + tr.state + "\r\n";
                    textBox1.Text = textBox1.Text + con;
                }
                catch
                {
                    textBox1.Text = " ";
                }

            }
            else
            {
                try
                {
                    TcpConnectionInformation tcp = (TcpConnectionInformation)e.UserState;
                    con = tcp.LocalEndPoint + " : " +"  "+ tcp.RemoteEndPoint + "     " + tcp.State + "\r\n";
                    textBox1.Text = textBox1.Text + con;
                }
                catch
                {
                    textBox1.Text = " ";
                }
            }
        }