using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Text.RegularExpressions; namespace WpfApp1.Methods { public class WordOnlyMeth { public bool WordOnly(string text) { Regex regex = new Regex("[^А-Яа-яЁё]+"); bool check = regex.IsMatch(text); if (check == true) { return false; } return true; } } }