Erik Porter's Blog

Code Snippet

using System;
using System.Web;
using System.Web.Mvc;
using Microsoft.WebPages.Helpers;

public static class Windows {
    public static IHtmlString JumpListTask(string name, string actionUrl, string iconUrl) {
        HttpContext httpContext = HttpContext.Current;
        
        if (httpContext.Request.Browser.Browser == "IE" && httpContext.Request.Browser.Version.StartsWith("9")) {
            if (string.IsNullOrWhiteSpace(name)) {
                throw new ArgumentNullException("name");
            }
            if (string.IsNullOrWhiteSpace(actionUrl)) {
                throw new ArgumentNullException("actionUrl");
            }

            if (string.IsNullOrWhiteSpace(iconUrl)) {
                throw new ArgumentNullException("iconUrl");
            }

            if (!(actionUrl.StartsWith("http://") || actionUrl.StartsWith("https://"))) {
                string hostUrl = httpContext.Request.Url.GetComponents(UriComponents.SchemeAndServer, UriFormat.Unescaped);
                actionUrl = hostUrl + VirtualPathUtility.ToAbsolute(actionUrl);
            }

            TagBuilder html = new TagBuilder("meta");
            html.MergeAttribute("name", "msapplication-task");
            html.MergeAttribute("content", string.Format("name={0}; action-uri={1}; icon-uri={2}", name, actionUrl, iconUrl));

            return new HtmlString(html.ToString(TagRenderMode.SelfClosing));
        }
        return new HtmlString("");
    }
}