private void UpdateMultipleOptions(object source, IMultipleOptionPropertyDefinition model, IEnumerable <ConfigurationSet> configurationSets, ConfigurationIdentity configIdentity)
{
var optionSet = optionSetFactory.Build(model, configIdentity, configurationSets);
var collectionBuilder = model.GetCollectionBuilder();
var items = model.GetPropertyValue(source) as IEnumerable;
foreach (var item in items ?? Enumerable.Empty <object>())
{
if (optionSet.TryGetValue(item, out var actualValue))
{
collectionBuilder.Add(actualValue);
}
}
model.SetPropertyValue(source, collectionBuilder.Collection);
}
