Regex

Question

User-1499457942 posted

Hi

  In below Regex i want that range should be [1 to 100]

public static bool IsDecimal(string input)
{
return Regex.IsMatch(input, @"[0-9]+(\.[0-9]+)?");
}

Thanks

Answer 1

User1724605321 posted

Hi JagjitSingh,

You can try :

        public static bool IsDecimal(string input)
        {
            return Regex.IsMatch(input, @"^[1-9][0-9]?$|^100$");
        }

Best Regards,

Nan Yu

Answer 2

User-1499457942 posted

Hi Nan Yu

  I have added 80.00 , even then it is saying Invalid value

Thanks

Answer 3

User1724605321 posted

Hi JagjitSingh ,

If the string is not fixed , it will be 80 or 80.00 or any other input , i suggest you could try solution without regex, for example :

bool Validate(string input) {
  int x;
  return int.TryParse(input, out x) && x > 0 && x <= 100;
}

Best Regards,

Nan Yu