Regular expression

For 0 to 90 use ^([0-9]0)$

For 00 - 99 use ^([0-9][0-9])$

For 00 - 20 use ^([0-9]|[1][0-9]|20)$

Paul

Hi,

the folliwng line accepts 1 without 0. can u modify it to accept only two digits like 01,02 ... 20?

thanks

ayha

The following revision:

^(0[0-9])$|^(1[0-9])$|^(20)$

Will only accept 2-digit numbers from 00 to 20.

Broken down as:

First Character 0 with a second character between 0 to 9,
OR
First character 1 with a second character between 0 to 9
OR
the number 20.

Paul

You can also write the above as:

^(0[0-9])|(1[0-9])|(20)$

Paul