RECORDING HISTORY AND BOOKMARK

using System.IO;
using System.Reflection;
using System.Net;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Xml.Serialization;

public class WebUrl
        {
            private string url;
            public string urlink
            {
                get { return url; }
                set { url = value; }
            }
        }

//mao ni event niya to automatically record history
private void geckoWebBrowser1_Navigated(object sender, Skybound.Gecko.GeckoNavigatedEventArgs e)
        {
            WebUrl url = new WebUrl();
            url.urlink = geckoWebBrowser1.Url.ToString();
            AppendData(url, Path.GetDirectoryName(Application.ExecutablePath) + "history.bin"); //auto create na ni sya
        }

//event to record bookmark
private void btnSaveBookmark_Click(object sender, EventArgs e)
        {
            WebUrl url = new WebUrl();
            url.urlink = geckoWebBrowser1.Url.ToString();
            AppendData(url, Path.GetDirectoryName(Application.ExecutablePath) + "bookmark.bin"); //auto create na ni sya
        }

public void AppendData(WebUrl url, string filename)
        {
            XmlSerializer xmlser = new XmlSerializer(typeof(List<WebUrl>));
            List<WebUrl> list = null;
            try
            {
                using (Stream s = File.OpenRead(filename))
                {
                    list = xmlser.Deserialize(s) as List<WebUrl>;
                }
            }
            catch
            {
                list = new List<WebUrl>();
            }
            list.Add(url);
            using (Stream s = File.OpenWrite(filename))
            {
                xmlser.Serialize(s, list);
            }
        }