public void RenderSiteMap(HttpContext context)
{
HttpRequest request = context.Request;
HttpResponse response = context.Response;
SiteData site = SiteData.CurrentSite;
List<SiteNav> lstNav = new List<SiteNav>();
using (SiteNavHelper navHelper = new SiteNavHelper()) {
//lstNav = navHelper.GetTwoLevelNavigation(SiteData.CurrentSiteID, true);
lstNav = navHelper.GetLevelDepthNavigation(SiteData.CurrentSiteID, 4, true);
}
lstNav.RemoveAll(x => x.ShowInSiteMap == false);
DateTime dtMax = lstNav.Min(x => x.EditDate);
string DateFormat = "yyyy-MM-dd";
response.Buffer = false;
response.Clear();
response.ContentType = "application/xml";
XmlWriter writer = XmlWriter.Create(response.Output);
writer.WriteStartDocument();
writer.WriteRaw("\n");
writer.WriteStartElement("urlset", "http://www.sitemaps.org/schemas/sitemap/0.9");
writer.WriteAttributeString("xmlns", "xsi", null, "http://www.w3.org/2001/XMLSchema-instance");
writer.WriteAttributeString("xsi", "schemaLocation", null, "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd");
writer.WriteRaw("\n");
writer.WriteStartElement("url");
writer.WriteElementString("loc", site.MainURL);
writer.WriteElementString("lastmod", dtMax.ToString(DateFormat));
writer.WriteElementString("priority", "1.0");
writer.WriteEndElement();
writer.WriteRaw("\n");
// always, hourly, daily, weekly, monthly, yearly, never
foreach (SiteNav n in lstNav) {
writer.WriteStartElement("url");
writer.WriteElementString("loc", site.ConstructedCanonicalURL(n));
writer.WriteElementString("lastmod", n.EditDate.ToString(DateFormat));
writer.WriteElementString("changefreq", "weekly");
writer.WriteElementString("priority", n.Parent_ContentID.HasValue ? "0.60" : "0.80");
writer.WriteEndElement();
writer.WriteRaw("\n");
}
writer.WriteEndDocument();
writer.Flush();
writer.Close();
}