protected IEnumerable <Feature> GetApplicableSelectedFeatures(
[NotNull] Dictionary <MapMember, List <long> > selectionByLayer,
[CanBeNull] NotificationCollection notifications = null)
{
int filteredCount = 0;
int selectionCount = 0;
foreach (var oidsByLayer in selectionByLayer)
{
if (!CanSelectFromLayer(oidsByLayer.Key as Layer, notifications))
{
filteredCount += oidsByLayer.Value.Count;
continue;
}
foreach (Feature feature in MapUtils.GetFeatures(
oidsByLayer.Key, oidsByLayer.Value))
{
yield return(feature);
selectionCount++;
}
}
if (filteredCount == 1)
{
notifications?.Insert(
0, new Notification("The selected feature cannot be used by the tool:"));
}
if (filteredCount > 1)
{
notifications?.Insert(
0,
new Notification(
$"{filteredCount} of {selectionCount + filteredCount} selected features cannot be used by the tool:"));
}
}