how to generate random letters in C#
private static Random random = new Random(); public static string RandomString(int length) { const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; return new string(Enumerable.Repeat(chars, length) .Select(s => s[random.Next(s.Length)]).ToArray()); }
random character c#
//Random Uppercase letter: Random rnd = new Random(); int ascii_index = rnd.Next(65, 91); //ASCII character codes 65-90 char myRandomUpperCase = Convert.ToChar(ascii_index); //produces any char A-Z //random lowercase letter: Random rnd2 = new Random(); int ascii_index2 = rnd2.Next(97, 123); //ASCII character codes 97-123 char myRandomLowerCase = Convert.ToChar(ascii_index2); //produces any char a-z //Random letter irrespective of case: (search up "random number from 2 different ranges" for explanation) int i = rnd.Next(1, 3) == 1 ? rnd.Next(65, 91) : rnd.Next(97, 123); char anyLetter = Convert.ToChar(i);
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