private void nodes_ItemsRemoved(object sender, CollectionItemsChangedEventArgs e)
{
foreach (NodeViewModel node in e.Items)
{
for (int i = 0; i < node.DialogueEntry.NumChoices; ++i)
{
_dialogue.RemoveChoice(node.DialogueEntry.Choice(i));
}
_dialogue.RemoveEntry(node.DialogueEntry);
}
}
public void Undo()
{
_dialogue.RemoveChoice(_connector.DialogueChoice);
_outgoingConnectors.Remove(_connector);
_connector = null;
}