public static MvcHtmlString bsSpan(this HtmlHelper helper, BinderGetMethod<string> getTextMethod) { var tag = new bsSpan(helper.ViewData.Model as BaseModel); tag.Bind_Text(getTextMethod); (helper.ViewData.Model as BaseModel).Helper = helper; var script = new StringBuilder(); var html = new StringBuilder(); return new MvcHtmlString(tag.GetHtml()); }