public void GetExpressionText()
        {
            var stack = SetupTos(Collection);

            stack.DisplayText  = DisplayText;
            stack.FalseArmText = FalseArmText;
            stack.TrueArmText  = TrueArmText;
            stack.Mode         = RequireAllDecisionsToBeTrue ? Dev2DecisionMode.AND : Dev2DecisionMode.OR;
            ExpressionText     = DataListUtil.ConvertModelToJson(stack).ToString();
        }