/// <summary>
/// (Re)sets DataContexts of grouped sections on the window.
/// </summary>
private void SetDataContexts()
{
journeysList = journeys.ByVehicle(vehicle);
fuelPurchasesList = fuelPurchases.ByVehicle(vehicle);
servicesList = services.ByVehicle(vehicle);
// Consequence of not having MVVM: have to null DataContext and assign the expected DataContext for changes to mitigate
if (journeysList.Count > 0)
{
gbJourney.DataContext = null;
gbJourney.DataContext = journeysList[0];
}
if (fuelPurchasesList.Count > 0)
{
gbFuelPurchase.DataContext = null;
gbFuelPurchase.DataContext = fuelPurchasesList[0];
}
if (servicesList.Count > 0)
{
gbRecentService.DataContext = null;
gbRecentService.DataContext = servicesList[0];
}
}
/// <summary>
/// Refreshes all information shown on the window.
/// </summary>
public void Refresh()
{
string selectedVehicleOdometer = "-";
if (lvVehicles.SelectedItem is Vehicle)
{
// Set selected vehicle in the list and propagate context to groupboxes.
selectedVehicle = (Vehicle)lvVehicles.SelectedItem;
CollectionViewSource.GetDefaultView(lvVehicles.ItemsSource).Refresh();
ObservableCollection <Journey> journeys = Journeys.ByVehicle(selectedVehicle);
ObservableCollection <Service> services = Services.ByVehicle(selectedVehicle);
ObservableCollection <FuelPurchase> fuelPurchases = FuelPurchases.ByVehicle(selectedVehicle);
gbVehicle.DataContext = selectedVehicle;
// Consequence of not having MVVM: have to null DataContext and assign the expected DataContext for changes to mitigate
gbJourney.DataContext = null;
gbJourney.DataContext = journeys.Count > 0 ? journeys[0] : null;
gbRecentService.DataContext = null;
gbRecentService.DataContext = services.Count > 0 ? services[0] : null;
gbFuelPurchase.DataContext = null;
gbFuelPurchase.DataContext = fuelPurchases.Count > 0 ? fuelPurchases[0] : null;
selectedVehicleOdometer = Vehicles.TotalDistance(journeys).ToString();
SetVehiclePropertyButtons();
}
else
{
gbJourney.DataContext = null;
SetVehiclePropertyButtons(false);
}
tbOdometer.Text = selectedVehicleOdometer;
}
/// <summary>
/// Refreshes list by re-grouping items that belong to vehicle and refresh list view.
/// </summary>
private void Refresh()
{
filteredJourneys = journeys.ByVehicle(vehicle);
lvJourneys.ItemsSource = filteredJourneys;
CollectionViewSource.GetDefaultView(lvJourneys.ItemsSource).Refresh();
}
