一些常用方法

   /// <summary>
        /// 是否中文名字
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static bool IsChinese(string name)
        {
            if (String.IsNullOrEmpty(name)) return false;
            else
            {
                Regex reg = new Regex(@"^[\u4E00-\u9FA5]{1,20}$");
                return reg.IsMatch(name);
            }
        }

        /// <summary>
        /// 是否联系电话(区号-电话号码-分机号)
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public static bool IsTel(string val)
        {
            if (String.IsNullOrEmpty(val)) return false;
            else
            {
                Regex reg = new Regex(@"^\d{3,4}-\d{8}(-\d{0,7})?$");
                return reg.IsMatch(val);
            }
        }

        /// <summary>
        /// 是否手机号码(1或者01打头)
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public static bool IsMobile(string val)
        {
            if (String.IsNullOrEmpty(val)) return false;
            else
            {
                Regex reg = new Regex(@"^0{0,1}1\d{10}$");
                return reg.IsMatch(val);
            }
        }

        /// <summary>
        /// 是否数字
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public static bool IsNum(string val)
        {
            if (String.IsNullOrEmpty(val)) return false;
            else
            {
                Regex reg = new Regex(@"^\d+$");
                return reg.IsMatch(val);
            }
        }