How to generate a alpha or a digit randomly?

[ad]

From the past posted, I know

char c = (char)rnd.Next('a', 'z' + 1);
can generate a alpha randomly.

But now I want to generate a alpha or a digit randomly. ('0'..'9' or
'a'..'z')

How can I do?

[rossum]

On Sun, 3 Dec 2006 19:50:14 +0800, "ad" <fl****@wfes.tcc.edu.tw>
wrote:

>From the past posted, I know

char c = (char)rnd.Next('a', 'z' + 1);
can generate a alpha randomly.

But now I want to generate a alpha or a digit randomly. ('0'..'9' or
'a'..'z')

How can I do?

char RandomChar() {
const string characters = "abcdefghijklmnopqrstuvwxyz0123456789";
return characters[rnd.Next(0, characters.Length)];
}

rossum