public void test()
        {
            Regex numR = new Regex(@"\d");
            Regex strR = new Regex(@"\D");

            string testStr = "asdfasdf8asdfasdf9adsfasd9";

            var temp2 = strR.Matches(testStr);

            string resultNum = "";
            string resultStr = "";

            foreach (Match item in numR.Matches(testStr))
            {
                resultNum += item.Value;
            }

            foreach (Match item in strR.Matches(testStr))
            {
                resultStr += item.Value;
            }

            Response.Write(resultNum + "|" + resultStr);
        }