private static IHtmlContent RenderFooterEditor(Footer footer)
        {
            if (footer.Editor == null)
            {
                var span = new TagBuilder("span");
                span.AddCssClass("emphasize");
                span.InnerHtml.Append(footer.Text);
                return(span);
            }

            return(MvcHtmlEditorRenderer.Render(footer.Editor));
        }
 private static IHtmlContent CreateFilter <T>(DataTable <T> .Column column) where T : class => column.Header.Filter == null
         ? null
 : MvcHtmlEditorRenderer.Render(column.Header.Filter);