[Test]
        public void ParseComplecCriteriaTest() {
            object testObject = new object();
            CriteriaOperator nameCriteria = CriteriaOperator.Parse("Name = 1");
            BinaryOperator operandCriteria = new BinaryOperator("SomeReferenceProperty", testObject);

            CriteriaOperator complexCriteria = CriteriaOperator.Or(operandCriteria, nameCriteria);

            string complexCriteriaString = complexCriteria.ToString();

            bool oldSuppressExceptionsOnParse = XpoObjectInCriteriaProcessingHelper.Tweaks.SuppressExceptionsOnParse;
            XpoObjectInCriteriaProcessingHelper.Tweaks.SuppressExceptionsOnParse = true;
            CriteriaOperator.UserValueParse += CriteriaOperator_UserValueParse;
            CriteriaOperator.UserValueToString += CriteriaOperator_UserValueToString;
            CriteriaOperator parsedComplexCriteria = CriteriaOperator.Parse(complexCriteriaString);
            //Some operations on parsedComplexCriteria
            complexCriteriaString = parsedComplexCriteria.ToString();
            CriteriaOperator.UserValueParse -= CriteriaOperator_UserValueParse;
            CriteriaOperator.UserValueToString -= CriteriaOperator_UserValueToString;
            XpoObjectInCriteriaProcessingHelper.Tweaks.SuppressExceptionsOnParse = oldSuppressExceptionsOnParse;

        }

        private void CriteriaOperator_UserValueToString(object sender, UserValueProcessingEventArgs e) {
            UserCustomValue userCustomValue = e.Value as UserCustomValue;
            if(userCustomValue != null) {
                e.Tag = userCustomValue.Tag;
                e.Data = userCustomValue.Data;
                e.Handled = true;
            }
        }

        private void CriteriaOperator_UserValueParse(object sender, UserValueProcessingEventArgs e) {
            e.Handled = true;
            UserCustomValue userCustomValue = new UserCustomValue() { Tag = e.Tag, Data = e.Data };
            e.Value = userCustomValue;
        }
        class UserCustomValue {
            public string Tag { get; set; }
            public string Data { get; set; }
        }