DayPilot - Building an Outlook-Like Calendar Component for ASP.NET

using System;
using System.Data;
using System.IO;
using System.Reflection;
using DayPilot.Web.Ui;

public partial class Demo : System.Web.UI.MasterPage
{
    //private string root;

    protected void Page_Load(object sender, EventArgs e)
    {
	// prevent invalid ViewState errors in Firefox
        if (Request.Browser.Browser == "Firefox") Response.Cache.SetNoStore();

        if (!IsPostBack)
        {
            Repeater1.DataBind();
            Repeater2.DataBind();
        }
    }

    protected bool MenuVisible
    {
        get
        {
            return root != ResolveUrl("~/");
        }
    }

    private string root
    {
        get
        {
            return Request.FilePath.Substring(0, Request.FilePath.LastIndexOf('/')) + "/";
        }
    }
    private DataTable tabs = null;
    protected DataTable Tabs
    {
        get
        {
            if (tabs == null)
            {
                DataSet ds = new DataSet();
                ds.ReadXml(Server.MapPath("~/Navigation.config"));
                DataTable dt = ds.Tables["Item"];

                foreach (DataRow r in dt.Rows)
                {
                    string url = r["url"] as string;

                    if (url == null)
                        continue;

                    r["url"] = ResolveUrl("~" + url);

                    if (root == ResolveUrl("~" + url))
                    {
                        r["class"] = "tab selected";
                    }
                    else
                    {
                        r["class"] = "tab";
                    }

                    //r["url"] = normalized;
                }
                tabs = dt;
            }

            return tabs;

        }
    }

    protected string Description
    {
        get
        {
            DataTable dt = LocalNavigation.Tables["Description"];
            if (dt == null || dt.Rows.Count == 0)
            {
                return String.Empty;
            }
            return dt.Rows[0]["text"] as string;
        }
        
    }

    private DataSet localNavigation;
    private DataSet LocalNavigation
    {
        get
        {
            if (localNavigation == null)
            {
                localNavigation = new DataSet();
                localNavigation.ReadXml(Server.MapPath("Navigation.config"));
            }
            return localNavigation;
        }
    }

    protected DataTable Items
    {
        get
        {
            DataTable dt = LocalNavigation.Tables["Item"].Copy();

            foreach (DataRow r in dt.Rows)
            {
                string url = r["url"] as string;

                if (url == null)
                    continue;

                if (Request.Path.ToUpper().IndexOf("/" + url.ToUpper()) != -1)
                {
                    r["url"] = ResolveUrl(root + url);
                    r["class"] = "selected";
                }
                else
                {
                    r["url"] = ResolveUrl(root + url);
                    r["class"] = "";
                }
            }
            return dt;

        }
    }

    protected bool IsSandbox
    {
        get
        {
            return Request.Path.ToLower().Contains("sandbox");
        }
    }

    protected bool IsDemo
    {
        get
        {
            return Request.Path.ToLower().Contains("demo");
        }
    }

}