private void UseFactory(IMetricFactory factory)
{
for (int i = 0; i < factory.Count; i++)
{
// this copy is important as the lambda function below
// would capture i, which equals factory.Count at the end of the loop.
// Therefore the lambda would always try to create factory item #factory.Count
// which does not exist.
// Don't remove the index variable.
int index = i;
var info = factory.GetMetricInfo(index);
var metricInfo = new MetricInfo(
info.Name,
info.Category,
info.UniqueName,
factory.Id,
g => factory.CreateInstance(index, g),
(g, x) => factory.CreateInstance(index, g, x)
);
_metrics.Add(metricInfo);
MetricAdded?.Invoke(this, new MetricAddedEventArgs(metricInfo));
}
}