WPF - create DataTemplate from FrameworkElement

Yet another code snippet for future reference.
I'm not quite sure if it works in all cases, but it does work for Canvas.


        DataTemplate GetElementAsTemplate(FrameworkElement element) {
            StringBuilder builder = new StringBuilder();
            builder.AppendFormat(
                "{0}",
                XamlWriter.Save(element));

            using(MemoryStream stream = new MemoryStream()) {
                using(StreamWriter writer = new StreamWriter(stream)) {
                    writer.Write(builder.ToString());
                    writer.Flush();

                    stream.Position = 0;
                    DataTemplate template = (DataTemplate)XamlReader.Load(stream);
                    return template;
                }
            }
        }