Программный код

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace applicationBrowser
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
buttonStop.Enabled = false;
}

private void textBoxAdress_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)13) webBrowser.Navigate(textBoxAdress.Text);
}

private void buttonSearch_Click(object sender, EventArgs e)
{
string url = textBoxAdress.Text;
if (!url.StartsWith("http://") && !url.StartsWith("https://")) url = "http://" + url;
webBrowser.Navigate(new Uri(url));
}

private void buttonHome_Click(object sender, EventArgs e)
{
webBrowser.Navigate(new Uri("http://google.com"));
}

private void buttonRefresh_Click(object sender, EventArgs e)
{
webBrowser.Refresh();
}

private void buttonStop_Click(object sender, EventArgs e)
{
webBrowser.Stop();
}

private void webBrowser_Navigating(object sender, WebBrowserNavigatingEventArgs e)
{
buttonStop.Enabled = true;
}
}
}