Google's MapData "Feature" WebControl

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Initia.Google.MapData;
using System.Threading;

namespace TestGMapData
{
    public partial class _Default : System.Web.UI.Page
    {
        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);

            // Set up events
            btnAddPoint.Click += new EventHandler(btnAddPoint_Click);
            lbZoomLevel.SelectedIndexChanged += new EventHandler(lbZoomLevel_SelectedIndexChanged);
            lbImageFormat.SelectedIndexChanged += new EventHandler(lbImageFormat_SelectedIndexChanged);
            tbWidth.TextChanged += new EventHandler(tbWidth_TextChanged);
            tbHeight.TextChanged += new EventHandler(tbHeight_TextChanged);
        }

        #region Event handlers

        protected void btnAddPoint_Click(object sender, EventArgs e)
        {
            gmdTest.Points.Add(new Point(double.Parse(tbLatitude.Text), double.Parse(tbLongitude.Text), (Point.Icon)Enum.Parse(typeof(Point.Icon), lbIconType.SelectedValue)));

            UpdateUI();
        }

        protected void tbWidth_TextChanged(object sender, EventArgs e)
        {
            gmdTest.Width = int.Parse(tbWidth.Text);
        }

        protected void tbHeight_TextChanged(object sender, EventArgs e)
        {
            gmdTest.Height = int.Parse(tbHeight.Text);
        }

        protected void lbZoomLevel_SelectedIndexChanged(object sender, EventArgs e)
        {
            gmdTest.Zoom = uint.Parse(lbZoomLevel.SelectedValue);
        }

        protected void lbImageFormat_SelectedIndexChanged(object sender, EventArgs e)
        {
            gmdTest.Format = (MapDataImage.ImageFormat)Enum.Parse(typeof(MapDataImage.ImageFormat), lbImageFormat.SelectedValue);
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                InitializeUI();
            }

            UpdateUI();
        }

        #endregion

        #region User Interface

        private void InitializeUI()
        {
            // Initialize zoom levels
            for (uint i = (uint)MapDataImage.ZoomLevel.Mini; i <= (uint)MapDataImage.ZoomLevel.Maxi; i++)
            {
                lbZoomLevel.Items.Add(new ListItem(i.ToString(), i.ToString()));
            }

            // Initialize image formats
            foreach (uint imageFormat in Enum.GetValues(typeof(MapDataImage.ImageFormat)))
            {
                lbImageFormat.Items.Add(new ListItem(Enum.GetName(typeof(MapDataImage.ImageFormat), imageFormat), ((uint)imageFormat).ToString()));
            }

            // Initialize icon types
            foreach (uint iconType in Enum.GetValues(typeof(Point.Icon)))
            {
                lbIconType.Items.Add(new ListItem(Enum.GetName(typeof(Point.Icon), iconType), ((uint)iconType).ToString()));
            }

            // For test purpose
            tbLatitude.Text = (45.728220).ToString();
            tbLongitude.Text = (4.830321).ToString();

            lbZoomLevel.SelectedIndex = 0;
            lbIconType.SelectedIndex = 0;
            lbImageFormat.SelectedIndex = 0;

            gmdTest.CountryCode = Thread.CurrentThread.CurrentUICulture.TwoLetterISOLanguageName;
            gmdTest.Width = int.Parse(tbWidth.Text);
            gmdTest.Height = int.Parse(tbHeight.Text);
        }

        private void UpdateUI()
        {
            gmdTest.Visible = (gmdTest.Points.Count > 0);
            lblMessage.Visible = !gmdTest.Visible;
        }

        #endregion
    }
}