//Message
private void ButtonMessage_Click(object sender, RoutedEventArgs e)
{
try
{
string message = new TextRange(RichTextBoxMessage.Document.ContentStart, RichTextBoxMessage.Document.ContentEnd).Text;
_listener.SendMessage(_client.Id, message, false);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}