public override IEnumerable <Item> ChildrenOfItem(Item item)
{
IEnumerable <Item> children = null;
item = ProxyItem.Unwrap(item);
if (!SupportedItemTypes.Any(type => type.IsInstanceOfType(item)))
{
return(Enumerable.Empty <Item> ());
}
try {
// Strictly evaluate the IEnumerable before we leave the try block.
children = ItemSource.ChildrenOfItem(item).ToArray();
} catch (Exception e) {
children = null;
SafeElement.LogSafeError(ItemSource, e, "ChildrenOfItem");
} finally {
children = children ?? Enumerable.Empty <Item> ();
}
return(children);
}