WindowTitleExtentsions WPF

namespace System.Windows {

    public static class WindowTitleExtentsions {

        public static void SetTitle(this Window w,string s = "",bool includeBuildDate = false) {
            w.Title = includeBuildDate ? GetTitleWBuildDate(s) : GetTitle(s);
        }

        public static string GetTitleWBuildDate(string s = "") {
            //"M/d/yyyy h:mm:ss:ffff"
            //string nt = AboutAssembly.Current.Title + " -  " + AboutAssembly.Current.Version.ToString();
            string nt = string.Format("{0} - {1}",
                AboutAssembly.Current.Title,
                AboutAssembly.Current.Version);

            if(!string.IsNullOrWhiteSpace(s))
                nt += " - " + s;

            string Build_Fmt = "ddd, MMM/dd/yyyy h:mm tt";
#if DEBUG
            Build_Fmt = "ddd, MMM/dd/yyyy h:mm:ss tt";
#endif
            nt += string.Format(" - Built on {0}",
                AboutAssembly.Current.BuildDate.ToString(Build_Fmt));

            return nt;
        }
        public static string GetTitle(string s = "") {
            string nt = string.Format("{0} - {1}",
                AboutAssembly.Current.Title,
                AboutAssembly.Current.Version);

            if(!string.IsNullOrWhiteSpace(s))
                return nt + " - " + s;
            else
                return nt;
        }
    }
}