C# Regex won't find the matches

Question

I am trying to detect whether my string contains the alphabets (a-z & A-Z), and I obtained my answer from this post. But not all string works as expected, take 8+a as an example:

string expression = "8+a";
            if (Regex.IsMatch(expression, @"^[a-zA-Z]+$") == true)
                true;
            else
                false;

This returns false which suppose to be true. How do I make this return true. Thanks!

Remove the anchors. Or better, do not use a regex if you just need to check if a string contains a single letter, use `if (s.Any(char.IsLetter)) {...}` — Wiktor Stribiżew, May 12 '17 at 13:54

score 2 · Accepted Answer · answered May 12 '17 at 13:55

2

^ Anchors your regex to the start of the string.

$ Anchors to the end of the string.

Remove those and your regex will work.

Also, there is no need to compare a bool value to true because it is done automatically.

answered May 12 '17 at 13:55

Tamás Szabó

1,388
11
23

C# Regex won't find the matches

1 Answers1