private void OnVertexNeighbors(object sender, RoutedEventArgs args)
{
args.Handled = true;
// toggle vertex neighbors without changing node costs
bool vertexNeighbors = (bool)VertexNeighbors.IsChecked;
if (_manager.SetVertexNeighbors(vertexNeighbors))
{
ShowAlgorithm(false);
}
}
