How can I get the characters between 2 other characters?

Question

I have a string which at some point contains the set of characters in the following format [123].

What I would like to do is get the characters between

Answer 1

the statement RegularExpressions.Regex("\[([^\]]*)\]") will returns the value inside bracket And the bracket its self!

I have used this statement to return the IPAddress surrounded by () inside long string:-

Dim IPRegEx As Regex = New Regex("(?<=\().*?(?=\))")