How to delete one character before and after character #?

Question

How to delete 1 string before and after character #

For Example: I have string: ABC#DEF and I want to result: ABEF

Answer 1

You can use regular expression to split by one char before and after #.

String.Join("", System.Text.RegularExpressions.Regex.Split("ABC#DEF", @".#."))

Answer 2

The simple way, you can do:

1. pos = <yourStringVariable>.IndexOf('#') -> find '#' position
2. target = yourStringVariable.Substring(pos - 1, 3) -> get '#' and the next and previous one
3. yourStringVariable.Replace(target, "") -> clear them in string.