Random hexadecimal Numbers

Hi ,
2day i'm showing u some creating random hexadecimal numbers
 Code:

                Random _random = new Random();

                int i = 0;

                string _randomValue = string.Empty;

                for (i = 0; i < 100; i++) // Set the count here

                {

                    _randomValue = _randomValue +" , "+ _random.Next().ToString("X");

                }

                lbl_ErrMsg.Text = _randomValue.ToString();

Have a nice day... 'N happy Coding :)