public async void LoadRegistros()
{
clienteServices = new ClienteServices();
var result = await clienteServices.GetRegistroTransacciones(CodigoUsuario, SelectedDate);
if (result.Count > 0)
{
IsVisibleButtons = true;
TransacccionCollection = new ObservableCollection <TransaccionmobileExtend>(result.OrderByDescending(a => a.Fecha));
}
else
{
IsVisibleButtons = false;
TransacccionCollection = new ObservableCollection <TransaccionmobileExtend>(new List <TransaccionmobileExtend>());
}
}