Esempi in C# (CSharp) per System.Collections.Generic System.Collections.Generic.HashSet.ElementAt

Esempio n. 1

        private static string ReplaceDisallowedCharacters(string input, string allowedCharacters = "abcdefghijklmnopqrstuvwxyz")
        {
            if (string.IsNullOrEmpty(allowedCharacters) || string.IsNullOrEmpty(input))
            {
                return(input);
            }

            var rnd            = new Random();
            var result         = input.ToCharArray();
            var allowedCharSet = new System.Collections.Generic.HashSet <char>(allowedCharacters);

            for (var i = 0; i < result.Length; i++)
            {
                if (!allowedCharSet.Contains(result[i]))
                {
                    result[i] = allowedCharSet.ElementAt(rnd.Next(0, allowedCharSet.Count - 1));
                }
            }

            return(new string(result));
        }