private void MeasurementLogGrid_LoadingRow(object sender, DataGridRowEventArgs e)
{
MeasurementLogEntry entry = e.Row.DataContext as MeasurementLogEntry;
// If this entry has a valid calculator associated then change the TextBlock to a HyperlinkButton
// that when clicked will use the Acivator object to dynamically create the appropriate calculator
if (entry.Measurement.Calculator != null)
{
TextBlock measurementName = MeasurementLogGrid.Columns[0].GetCellContent(e.Row) as TextBlock;
if (measurementName != null)
{
DataGridCell cell = measurementName.Parent as DataGridCell;
HyperlinkButton calculatorLink = new HyperlinkButton();
calculatorLink.Content = entry.Measurement.measurement_name;
calculatorLink.Margin = new Thickness(5);
calculatorLink.HorizontalAlignment = HorizontalAlignment.Center;
calculatorLink.Click += (s, ev) =>
{
// Create an instance of the calculator using IMeasurementCalculator interface so that we have
// access to the calculated value and can update the selected row value
ChildWindow modalWindow = new ChildWindow();
IMeasurementCalculator calc = Activator.CreateInstance(Type.GetType(String.Format("FitnessTrackerPlus.Views.Measurement.Calculators.{0}",
entry.Measurement.Calculator.type_name))) as IMeasurementCalculator;
calc.CalculationCancelled += (se, eve) => { modalWindow.Close(); };
calc.CalculationComplete += (se, eve) =>
{
modalWindow.Close();
entry.value = calc.CalculatedValue;
context.SubmitChanges();
};
modalWindow.Title = String.Format("{0} Calculator", entry.Measurement.measurement_name);
modalWindow.Content = calc;
modalWindow.Show();
};
// Repace the TextBlock with the HyperlinkButton control
cell.Content = calculatorLink;
}
}
}
private void CreateMeasurementLogEntry(FitnessTrackerPlus.Web.Data.Measurement measurement)
{
MeasurementLogEntry entry = new MeasurementLogEntry();
// Setup new measurement log entry with selected date, measurement and current user
IEnumerator units = measurement.MeasurementsUnits.GetEnumerator();
units.MoveNext();
entry.measurement_id = measurement.id;
entry.entry_date = Globals.SelectedDate;
entry.user_id = Globals.CurrentUser.id;
entry.unit_id = (units.Current as MeasurementsUnits).unit_id;
context.MeasurementLogEntries.Add(entry);
context.SubmitChanges((ChangesSubmitted) =>
{
if (!ChangesSubmitted.HasError)
{
MeasurementData.Load();
}
}, null);
}
