Telerik.Web.Mvc.Extensions.HtmlAttributesExtensions.PrependCssClasses C# (CSharp) Method

        public static void PrependCssClasses(IDictionary<string, object> htmlAttributes, IEnumerable<string> cssClasses)
        {
            var sb = new StringBuilder();

            cssClasses.Each(a =>
            {
                sb.Append(a);
                sb.Append(" ");
            });

            htmlAttributes.PrependInValue("class", " ", sb.ToString().Trim());
        }