[.NET] C# Webbrowser mit Progressbar verbinden

/*
 * Erstellt mit SharpDevelop.
 * Benutzer: xxxxxxx
 * Datum: 12.12.2007
 * Zeit: 10:24
 * 
 * Sie können diese Vorlage unter Extras > Optionen > Codeerstellung > Standardheader ändern.
 */

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

namespace browser
{
 /// <summary>
 /// Description of MainForm.
 /// </summary>
 public partial class MainForm : Form
 {
 public MainForm()
 {
 //
 // The InitializeComponent() call is required for Windows Forms designer support.
 //
 InitializeComponent();
 
 //
 // TODO: Add constructor code after the InitializeComponent() call.
 //
 }
 
 void BtnHomeClick(object sender, EventArgs e)
 {
 webhp.Navigate("http://www.google.de/");
 }
 
 void BtnRefreshClick(object sender, EventArgs e)
 {
 webhp.Refresh();
 }
 
 void BtnBackwardClick(object sender, EventArgs e)
 {
 webhp.GoBack();
 }
 
 void BtnForwardClick(object sender, EventArgs e)
 {
 webhp.GoForward();
 }
 
 void BtnGoClick(object sender, EventArgs e)
 {
 webhp.Navigate(txturl.Text);
 }
 
 void WebhpDocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
 {
 txturl.Text = webhp.Url.ToString();


 if (webhp.CanGoBack)
 {
 btnBackward.Enabled = true;
 }
 else
 {
 btnBackward.Enabled = false;
 
 }

 if (webhp.CanGoForward)
 {
 btnForward.Enabled = true;
 }
 else
 {
 btnForward.Enabled = false;
 }
 }
 
 void ProgressBar1Click(object sender, EventArgs e)
 {
 
 }
 }
}