public static CriteriaOperator GetTotalCriteria(this ListView xpandListView)
{
xpandListView.SaveModel();
List <CriteriaOperator> operators = xpandListView.CollectionSource.Criteria.GetValues();
operators.Add(CriteriaOperator.Parse(xpandListView.Model.Filter));
return(XPObjectSpace.CombineCriteria(operators.ToArray()));
}