c# string 转 GUID

提供两种方法

1.try...catch...

        /*
         * string TO guid 
         */
        private static bool ToGuid(string str)
        {
            Guid gv = new Guid();
            try
            {
                gv = new Guid(str);
            }
            catch (Exception)
            {

            }
            if (gv != Guid.Empty)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

2.match匹配

        /*
         * string TO guid 
         */
        private static bool ToGuid(string str)
        {
            Match m = Regex.Match(str,@"^[0-9a-f]{8}(-[0-9a-f]{4}){3}-[0-9a-f]{12}$",RegexOptions.IgnoreCase);
            Guid gv = new Guid();
            if (m.Success)
            {
                gv = new Guid(str);
            }
            if (gv != Guid.Empty)
            {
                return true;
            }
            else
            {
                return false;
            }
        }