Simple Web Browser in C#.Net

I have used Windows Forms to develop this application. The Browser control is used to display Web pages and class is Web Browser.

Code of form1.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

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

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            webBrowser1.Navigate(comboBox1.Text.ToString());
        }

        private void navigationToolStripMenuItem_Click(object sender, EventArgs e)
        {

        }

        private void backToolStripMenuItem_Click(object sender, EventArgs e)
        {
            webBrowser1.GoBack();
        }

        private void nextToolStripMenuItem_Click(object sender, EventArgs e)
        {
            webBrowser1.GoForward();

        }

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            string path = comboBox1.Text.ToString();
            webBrowser1.Navigate(path);
            comboBox1.Items.Add(comboBox1.Text.ToString());

        }

        private void homeToolStripMenuItem_Click(object sender, EventArgs e)
        {
           
            webBrowser1.Navigate("http://172.19.2.250/lpuums");
            comboBox1.Text = "http://172.19.2.250/lpuums";
          
       }

        private void menuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {

        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}

Program.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace WebBrowser
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}