public void AddFillup(FillupModel fillup)
{
App.ViewModel.DefaultVehicle.Fillups.Add(fillup);
App.ViewModel.SaveChangesToDB();
calcDefault();
NotifyPropertyChanged("DefaultVehicle");
}
public void DeleteFillup(FillupModel fillup)
{
_db.Fillups.DeleteOnSubmit(fillup);
App.ViewModel.SaveChangesToDB();
calcDefault();
NotifyPropertyChanged("DefaultVehicle");
}
private void FillupList_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
{
FillupModel fillup = (sender as ListBox).SelectedItem as FillupModel;
if (fillup != null)
{
// unset the selection and bring user to edit fillup
(sender as ListBox).SelectedItem = null;
NavigationService.Navigate(new Uri(string.Format("//Views/FillupPage.xaml?fillupId={0}",
Uri.EscapeUriString(fillup.FillupId.ToString())), UriKind.Relative));
}
}
// Called when default vehicle is set, calculates MPGs and other stats
public void calcDefault()
{
OverallMPG = 0;
OverallCostMile = 0;
OverallMileFill = 0;
OverallDaysFill = 0;
FillupModel previousFillup = new FillupModel();
DefaultFillups = new ObservableCollection <FillupModel>();
int i = 0;
double statMileDiff = 0;
double statTotalVol = 0;
TimeSpan statDayDiff = new TimeSpan();
double statTotalCost = 0;
foreach (FillupModel f in (from fu in DefaultVehicle.Fillups orderby fu.FillupDate descending select fu))
{
DefaultFillups.Add(f);
if (previousFillup.OdoReading != 0.0D && previousFillup.VolReading != 0)
{
previousFillup.FillupMPG = (previousFillup.OdoReading - f.OdoReading) / previousFillup.VolReading;
if (i <= 7)
{
statMileDiff += (previousFillup.OdoReading - f.OdoReading);
statTotalVol += (f.VolReading);
statDayDiff += (previousFillup.FillupDate - f.FillupDate);
statTotalCost += (previousFillup.PriceReading * previousFillup.VolReading);
i++;
}
}
previousFillup = f;
}
if (statTotalVol > 0 && statMileDiff > 0)
{
OverallMPG = statMileDiff / statTotalVol;
OverallCostMile = statTotalCost / statMileDiff;
OverallMileFill = statMileDiff / i;
OverallDaysFill = statDayDiff.Days / i;
}
OverallFillupCount = i;
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
if (App.ViewModel.AllVehicles.Count > 0)
{
Welcome_Panel.Visibility = Visibility.Collapsed;
Form_Panel.Visibility = Visibility.Visible;
if (!State.ContainsKey("WentToDatePicker") && NavigationContext.QueryString.ContainsKey("fillupId"))
{
if (App.ViewModel.DefaultFillups.Count(f => f.FillupId == int.Parse(NavigationContext.QueryString["fillupId"])) == 1)
{
_editFillup = App.ViewModel.DefaultFillups.First(f => f.FillupId == int.Parse(NavigationContext.QueryString["fillupId"]));
if (_editFillup != null)
{
// Editing vehicle...
_editMode = true;
PageTitle_Edit.Visibility = Visibility.Visible;
PageTitle_Add.Visibility = Visibility.Collapsed;
FillupDeleteButton.Visibility = Visibility.Visible;
FillupDate.Value = new DateTime(_editFillup.FillupDate.Year, _editFillup.FillupDate.Month, _editFillup.FillupDate.Day);
FillupTime.Value = new DateTime(_editFillup.FillupDate.Year, _editFillup.FillupDate.Month, _editFillup.FillupDate.Day, _editFillup.FillupDate.Hour, _editFillup.FillupDate.Minute, _editFillup.FillupDate.Second);
FillupPriceInput.Text = _editFillup.PriceReading.ToString();
FillupVolInput.Text = _editFillup.VolReading.ToString();
FillupOdoInput.Text = _editFillup.OdoReading.ToString();
}
}
else if (NavigationContext.QueryString["fillupId"] != null)
{
NavigationService.Navigate(new Uri("//Views/MainPage.xaml", UriKind.Relative));
}
}
}
else
{
Form_Panel.Visibility = Visibility.Collapsed;
Welcome_Panel.Visibility = Visibility.Visible;
}
}
public void EditFillup(FillupModel fillup)
{
App.ViewModel.SaveChangesToDB();
calcDefault();
NotifyPropertyChanged("DefaultVehicle");
}
private void fillupSave_Click(object sender, System.Windows.RoutedEventArgs e)
{
DateTime dT = (DateTime)FillupDate.Value;
dT.Subtract(dT.TimeOfDay);
dT = dT.AddHours(FillupTime.Value.Value.Hour);
dT = dT.AddMinutes(FillupTime.Value.Value.Minute);
if (FillupDate.Value == null)
{
MessageBox.Show("Date value required.");
return;
}
if (FillupTime.Value == null)
{
MessageBox.Show("Time value required.");
return;
}
if (string.IsNullOrWhiteSpace(FillupOdoInput.Text))
{
MessageBox.Show("The odometer reading is required.");
return;
}
if (string.IsNullOrWhiteSpace(FillupVolInput.Text))
{
MessageBox.Show("The gallons value is required.");
return;
}
if (string.IsNullOrWhiteSpace(FillupPriceInput.Text))
{
MessageBox.Show("The price per gallon value is required.");
return;
}
float val;
if (!float.TryParse(FillupOdoInput.Text, out val))
{
MessageBox.Show("The odometer reading could not be converted to a number.");
return;
}
;
if (!float.TryParse(FillupVolInput.Text, out val))
{
MessageBox.Show("The gallons value could not be converted to a number.");
return;
}
;
if (!float.TryParse(FillupPriceInput.Text, out val))
{
MessageBox.Show("The price per gallon value could not be converted to a number.");
return;
}
;
int editId = _editMode ? _editFillup.FillupId : -1;
if ((from f in App.ViewModel.DefaultFillups where f.FillupDate == dT && f.FillupId != editId select f.FillupId).Count() > 0)
{
MessageBox.Show("An entry for this time already exists");
return;
}
if ((from f in App.ViewModel.DefaultFillups where f.FillupDate <= dT && f.OdoReading >= double.Parse(FillupOdoInput.Text) && f.FillupId != editId select f.FillupId).Count() > 0)
{
MessageBox.Show("An entry exists for a previous date with a higher odometer reading. Please check entry and/or fillup history.");
return;
}
if ((from f in App.ViewModel.DefaultFillups where f.FillupDate >= dT && f.OdoReading <= double.Parse(FillupOdoInput.Text) && f.FillupId != editId select f.FillupId).Count() > 0)
{
MessageBox.Show("An entry exists for a future date with a lower odometer reading. Please check entry and/or fillup history.");
return;
}
// Everything checks out, lets do it!
if (!_editMode)
{
FillupModel _newFillup = new FillupModel();
_newFillup.FillupDate = dT;
_newFillup.PriceReading = double.Parse(FillupPriceInput.Text);
_newFillup.VolReading = double.Parse(FillupVolInput.Text);
_newFillup.OdoReading = double.Parse(FillupOdoInput.Text);
App.ViewModel.AddFillup(_newFillup);
}
else
{
_editFillup.FillupDate = dT;
_editFillup.PriceReading = double.Parse(FillupPriceInput.Text);
_editFillup.VolReading = double.Parse(FillupVolInput.Text);
_editFillup.OdoReading = double.Parse(FillupOdoInput.Text);
App.ViewModel.EditFillup(_editFillup);
}
// Return to the main page.
if (NavigationService.CanGoBack)
{
NavigationService.GoBack();
}
}
