How-To: Get ReferenceKey through a SelectionItem in HPS

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As a way to get the ReferenceKey via a SelectionItem , we can leverage using a KeyPath . Below is a code snippet calling ShowPath() (instead of ShowSelectedItem() ) on a SelectionItem

while (srIterator.IsValid())
{
  HPS.SelectionItem selectionItem = srIterator.GetItem();

  HPS.KeyPath keyPath = new HPS.KeyPath();
  selectionItem.ShowPath(out keyPath);
  Key myKey = new Key(keyPath.Front());

  if (myKey.Type() == HPS.Type.ReferenceKey)
  {
      //Add your code here;
  }