protected override void OnPreRender(EventArgs e)
{
this.Controls.Clear();
try {
ContentPage cp = cu.GetContainerContentPage(this);
SiteData theSite = SiteData.CurrentSite;
if (cp != null)
{
HtmlMeta metaSub = new HtmlMeta();
metaSub.Attributes["property"] = "og:description";
metaSub.Content = String.IsNullOrEmpty(cp.MetaDescription) ? theSite.MetaDescription : cp.MetaDescription;
this.Controls.Add(metaSub);
HtmlMeta metaURL = new HtmlMeta();
metaURL.Attributes["property"] = "og:url";
metaURL.Content = theSite.DefaultCanonicalURL;
this.Controls.Add(metaURL);
HtmlMeta metaType = new HtmlMeta();
metaType.Attributes["property"] = "og:type";
if (this.OpenGraphType == OpenGraphTypeDef.Default)
{
if (cp.ContentType == ContentPageType.PageType.BlogEntry)
{
metaType.Content = OpenGraphTypeDef.Blog.ToString().ToLower();
}
else
{
metaType.Content = OpenGraphTypeDef.Article.ToString().ToLower();
}
if (theSite.Blog_Root_ContentID.HasValue && cp.Root_ContentID == theSite.Blog_Root_ContentID)
{
metaType.Content = OpenGraphTypeDef.Website.ToString().ToLower();
}
}
else
{
metaType.Content = this.OpenGraphType.ToString().ToLower();
}
this.Controls.Add(metaType);
if (!String.IsNullOrEmpty(this.Page.Title))
{
HtmlMeta metaTitle = new HtmlMeta();
metaTitle.Attributes["property"] = "og:title";
metaTitle.Content = cp.TitleBar;
this.Controls.Add(metaTitle);
}
if (!String.IsNullOrEmpty(cp.Thumbnail))
{
HtmlMeta metaTitle = new HtmlMeta();
metaTitle.Attributes["property"] = "og:image";
metaTitle.Content = String.Format("{0}/{1}", theSite.MainCanonicalURL, cp.Thumbnail).Replace(@"//", @"/").Replace(@"//", @"/").Replace(@":/", @"://");
this.Controls.Add(metaTitle);
}
if (!String.IsNullOrEmpty(theSite.SiteName))
{
HtmlMeta metaSite = new HtmlMeta();
metaSite.Attributes["property"] = "og:site_name";
metaSite.Content = theSite.SiteName;
this.Controls.Add(metaSite);
}
HtmlMeta metaPubDate = new HtmlMeta();
metaPubDate.Attributes["property"] = "article:published_time";
metaPubDate.Content = theSite.ConvertSiteTimeToISO8601(cp.GoLiveDate);
this.Controls.Add(metaPubDate);
HtmlMeta metaUpdateDate = new HtmlMeta();
metaUpdateDate.Attributes["property"] = "article:modified_time";
metaUpdateDate.Content = theSite.ConvertSiteTimeToISO8601(cp.EditDate);
this.Controls.Add(metaUpdateDate);
if (ShowExpirationDate)
{
HtmlMeta metaExpireDate = new HtmlMeta();
metaExpireDate.Attributes["property"] = "article:expiration_time";
metaExpireDate.Content = theSite.ConvertSiteTimeToISO8601(cp.RetireDate);
this.Controls.Add(metaExpireDate);
}
}
} catch (Exception ex) {
}
base.OnPreRender(e);
}
