private void Refresh_click(object sender, RoutedEventArgs e)
{
Mouse.OverrideCursor = Cursors.Wait;
var settings = settingsService.GetSettings();
settingsService.CleatAuthInformation();
var authCookie = barboraService.Login(settings.Username, settings.Password);
settingsService.UpdateAuthInformation(settings.Username, settings.Password, authCookie);
Mouse.OverrideCursor = Cursors.Arrow;
}