/// <summary>
/// Add canonical URL element to the <![CDATA[<head>]]>
/// </summary>
/// <param name="html">HTML helper</param>
/// <param name="part">Canonical URL part</param>
/// <param name="pageHeadBuilder"></param>
public static void AddCanonicalUrlParts(this HtmlHelper html, string part,
IPageHeadBuilder pageHeadBuilder = null)
{
if (pageHeadBuilder == null)
pageHeadBuilder = EngineContext.Current.Resolve<IPageHeadBuilder>();
pageHeadBuilder.AddCanonicalUrlParts(part);
}
/// <summary>
/// Add canonical URL element to the <![CDATA[<head>]]>
/// </summary>
/// <param name="html">HTML helper</param>
/// <param name="part">Canonical URL part</param>
/// <param name="withQueryString">Whether to use canonical URLs with query string parameters</param>
public static void AddCanonicalUrlParts(this IHtmlHelper html, string part, bool withQueryString = false)
{
IPageHeadBuilder pageHeadBuilder = ServiceProviderFactory.ServiceProvider.GetService <IPageHeadBuilder>();
if (withQueryString)
{
//add ordered query string parameters
System.Collections.Generic.Dictionary <string, string> queryParameters = html.ViewContext.HttpContext.Request.Query.OrderBy(parameter => parameter.Key)
.ToDictionary(parameter => parameter.Key, parameter => parameter.Value.ToString());
part = QueryHelpers.AddQueryString(part, queryParameters);
}
pageHeadBuilder.AddCanonicalUrlParts(part);
}
