How to check if a char is in the alphabet in C#

Question

I think the title says enough.

void onClickSubmit(char submit)
{
     if(submit.//check if it is alphabetical)
     {
           //some code
     }
}

how can i check if the char submit is in the alphabet?

What do you consider your alphabet? Is it just anything `[a-zA-Z]`? Or do you have a special alphabet? — wkl, Jan 05 '16 at 16:06
Or any letter character [`Char.IsLetter()`](https://msdn.microsoft.com/en-us/library/yyxz6h5w(v=vs.110).aspx)? — ryanyuyu, Jan 05 '16 at 16:07
Did you bother Googling/researching this *at all* before asking? What have you actually tried? — tnw, Jan 05 '16 at 16:08
Possible duplicate of [how to check first character of a string if a letter, any letter](http://stackoverflow.com/questions/3560393/how-to-check-first-character-of-a-string-if-a-letter-any-letter) — Rotem, Jan 05 '16 at 16:11
Is Ы part of your alphabet? And ㅂ? Not so *obvious*, maybe. — Adriano Repetti, Jan 05 '16 at 16:14

sm.abdullah · Accepted Answer · 2016-01-05T16:11:24.493

6

You can use regex if your alphabet are only A-Z or a-z

char a = 'A';
bool isAlphaBet = Regex.IsMatch(a.ToString(), "[a-z]", RegexOptions.IgnoreCase);
if(isAlphaBet )
{
    //do this..
}

edited Jan 05 '16 at 16:11

answered Jan 05 '16 at 16:09

sm.abdullah

score 0 · Answer 2 · answered Jan 05 '16 at 16:14

0

To support any UTF-8 Letter

var rgx = new Regex(@"[\p{L}]");
Console.Write(rgx.Match("Ö").Success);

answered Jan 05 '16 at 16:14

tenbits

2 Answers2