AsyncMethodWpf.Service.ReverseString C# (CSharp) 메소드

        public string ReverseString(string input)
        {
            Thread.Sleep(2000);
            return new String(input.Reverse().ToArray());
        }

 private void ReverseButton_Click(object sender, RoutedEventArgs e)
 {
     var service = new Service();
     ReversedTextBox.Text = service.ReverseString(TheTextBox.Text);
 }