private void MetroWindow_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
var timer = new TimerUtil(TimeSpan.FromSeconds(1),
async(obj, args) =>
{
var trm = obj as DispatcherTimer;
trm.IsEnabled = false;
trm.Stop();
await Task.Run(() => Carregar());
});
timer.Iniciar();
}
