private void InsulinOnPropertyChanged(object sender, PropertyChangedEventArgs args)
{
var insulin = (InsulinItem)sender;
var oldPoint = insulin.GetDataPoint();
InsulinDataPoints.Remove(oldPoint);
AddInsulinDatapoint(insulin.GenerateDataPoint());
RaisePropertyChanged(() => InsulinDataPoints);
}
private void InsulinCollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
switch (args.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (InsulinItem insulin in args.NewItems)
{
AddInsulinDatapoint(insulin.GetDataPoint());
}
break;
case NotifyCollectionChangedAction.Remove:
foreach (InsulinItem insulin in args.OldItems)
{
var point = ModelToDataPoint(insulin);
if (!InsulinDataPoints.Remove(point))
{
throw new InvalidOperationException($"Insulin {insulin.ToString()} datapoint {point} was not removed");
}
}
break;
case NotifyCollectionChangedAction.Replace:
int count = args.OldItems.Count;
for (int i = 0; i < count; i++)
{
var insulin = args.OldItems[i] as InsulinItem;
var point = ModelToDataPoint(insulin);
if (!InsulinDataPoints.Contains(point))
{
throw new ValueUnavailableException("Datapoint is missing.");
}
InsulinDataPoints.Remove(point);
if (args.NewItems[i] is InsulinItem newInsulin)
{
AddInsulinDatapoint(newInsulin.GetDataPoint());
}
}
break;
case NotifyCollectionChangedAction.Move:
break;
case NotifyCollectionChangedAction.Reset:
InsulinDataPoints.Clear();
break;
default:
throw new ArgumentOutOfRangeException();
}
}
