void EventButtonClick(object sender, EventArgs e)
{
var addpl = new AgregarPlato("Evento");
addpl.close += Addpl_close;
this.Navigation.PushAsync(addpl);
}
private async void CartaViewModel_agregar(object sender, EventArgs e)
{
var addpl = new AgregarPlato("Plato");
addpl.close += Addpl_close;
addpl.AgregarPlatillo(sender as Plato);
await this.Navigation.PushAsync(addpl);
}