private void CropCycleSelected(object sender, SelectionChangedEventArgs e)
{
ChartView.SuspendSeriesNotification();
// TODO: Kill this and move to Viewmodel.
// THis is broken
// You should two way bind box.selecteditem to ViewModel.SelectedCropCycle.
var box = (ComboBox)sender;
var selection = (KeyValuePair <CropCycle, string>)box.SelectedItem;
ViewModel.SelectedCropCycle = selection.Key;
StartDatePicker.Date = ViewModel.CycleStartTime;
EndDatePicker.Date = ViewModel.CycleEndTime;
ChartView.ResumeSeriesNotification();
}