How to convert a int to a numeric char in C#?

Question

I wan't to convert a int to a char, but I don't want the (char)int method, because (char)3 won't give '3' but ''.

So, there's a built-in way to get what I want, or I need to make it myself?

So, you want the character equivalent of 3=>'3', 5=>'5', etc (not the decimal equivalent, e.g. 3=>51, 5=>53, etc.) — Brad Christie, Nov 18 '15 at 22:51

score 8 · Accepted Answer · answered Nov 18 '15 at 22:50

8

I think this is the easiest, most readable way:

(char)('0' + 3)

If you want to be more culture aware, you can use this.

CultureInfo.CurrentCulture.NumberFormat.NativeDigits[3]

answered Nov 18 '15 at 22:50

recursive

Indeed, offset the incoming integer with the "starting point" of the numerics; though this doesn't avoid edge cases. – Brad Christie Nov 18 '15 at 22:52
Where `3` equals to my int, right? – Mister R.U.B.I Nov 18 '15 at 22:52
@Stefan: Because `System.Convert.ToInt32` doesn't solve the problem, and doesn't even produce a `char`. – recursive Nov 18 '15 at 22:53
@MisterR.U.B.I: yes. – recursive Nov 18 '15 at 22:53
Keep in mind that this won't work for int's above 9. – Stefan Nov 18 '15 at 22:55
@Stefan: Naturally. Nothing works for integers above 9, since there is no single character base-10 representation of those numbers. – recursive Nov 18 '15 at 22:56
Could be converted to char array or even string though. While i'm at it: `3.ToString().ToCharArray()[0]` – Stefan Nov 18 '15 at 22:58
2

@Stefan: I see what you mean. BTW, you can cut out the array. `3.ToString()[0]` – recursive Nov 18 '15 at 22:59
It does work, but for some reason not in my code. I need to fix it. Thanks. – Mister R.U.B.I Nov 18 '15 at 23:02
oww nice, again! :-) – Stefan Nov 18 '15 at 23:03

score 1 · Answer 2 · answered Nov 18 '15 at 22:52

1

(char)('0' + IntegerValue)

Note: you use 3 so your integer value is 3 you can write 3 instead of integer value

answered Nov 18 '15 at 22:52

zafar hayat

Stefan · Answer 3 · 2015-11-19T13:30:44.633

0

Just as an alternative, from earlier comments (with special thanks to @recursive):

int yourInt = 3; //can be double or decimal as well
char val = yourInt.ToString()[0];

Although it takes the first digit, it will work for other numeric types as well (double, decimal, ...).

edited Nov 19 '15 at 13:30

answered Nov 18 '15 at 23:15

Stefan

3 Answers3