Aspectacular.QueryStringEx.EnsureQsStored C# (CSharp) Method

        private static NameValueCollection EnsureQsStored(HttpRequest request)
        {
            if(!HttpContext.Current.Items.Contains("QueryString"))
                HttpContext.Current.Items["QueryString"] = new NameValueCollection(request.QueryString);

            NameValueCollection qs = (NameValueCollection)HttpContext.Current.Items["QueryString"];
            return qs;
        }