Regex to ignore alphanumeric characters in a string

I've a regex which currently checks for a member number present in a string with memberNo between 6 and 9 in length

(?<memberNo>[0-9]{6,9})  

What i need is if i get the input 123a456 that the regex ignores any alphanumeric characters in where the contiguous int values between 6 and 9 are present.

For example these should all match

123456  a123456  123a456  12345a6  

etc

https://stackoverflow.com/questions/66696303/regex-to-ignore-alphanumeric-characters-in-a-string March 19, 2021 at 01:38AM