string filter: detect non-ASCII signs

Question

I am creating an application which will send the input string to mobile device. Some devices have problems with encoding special characters so I would like to create a filte

Answer 1

This is a regex option (using System.Text.RegularExpressions)

    string s = "søme string";
    bool result = Regex.IsMatch(s, @".*[^\u0000-\u007F].*"); // result == true