private void CargarFuncion()
 {
     txtFecha.Text = dateTimePicker1.Value.ToShortDateString();
     obra          = metroComboBox2.SelectedItem as Obra;
     diaFuncion    = Util.DayOfWeekHelper(dateTimePicker1.Value.Date.DayOfWeek);
     FechaFuncion  = dateTimePicker1.Value.Date;
     using (IServiceTeatro servicio = Contenedor.current.Resolve <IServiceTeatro>())
     {
         try
         {
             listaFuncion = servicio.ListarFuncionDiaObra(diaFuncion, obra.IdObra);
             metroComboBox3.DataSource    = listaFuncion;
             metroComboBox3.DisplayMember = "Horario";
         }
         catch (Exception ex)
         {
             MessageBox.Show("Ocurrió un error: " + ex.Message, "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
         }
     }
 }