Opc.Ua.DialogConditionState.OnRespondCalled C# (CSharp) Method

        protected virtual ServiceResult OnRespondCalled(
            ISystemContext context,
            MethodState method,
            NodeId objectId,
            int selectedResponse)
        {
            ServiceResult error = null;

            try
            {
                if (!this.EnabledState.Id.Value)
                {
                    return error = StatusCodes.BadConditionDisabled;
                }

                if (!this.DialogState.Id.Value)
                {
                    return error = StatusCodes.BadDialogNotActive;
                }

                if (selectedResponse < 0 || selectedResponse >= this.ResponseOptionSet.Value.Length)
                {
                    return error = StatusCodes.BadDialogResponseInvalid;
                }

                if (OnRespond == null)
                {
                    return error = StatusCodes.BadNotSupported;
                }

                error = OnRespond(context, this, selectedResponse);

                // report a state change event.
                if (ServiceResult.IsGood(error))
                {
                    ReportStateChange(context, false);
                }
            }
            finally
            {
                if (this.AreEventsMonitored)
                {
                    AuditConditionRespondEventState e = new AuditConditionRespondEventState(null);

                    TranslationInfo info = new TranslationInfo(
                        "AuditConditionDialogResponse",
                        "en-US",
                        "The Respond method was called.");

                    e.Initialize(
                        context,
                        this,
                        EventSeverity.Low,
                        new LocalizedText(info),
                        ServiceResult.IsGood(error),
                        DateTime.UtcNow);

                    e.SourceName.Value = "Attribute/Call";

                    e.MethodId = new PropertyState<NodeId>(e);
                    e.MethodId.Value = method.NodeId;

                    e.InputArguments = new PropertyState<object[]>(e);
                    e.InputArguments.Value = new object[] { selectedResponse };

                    ReportEvent(context, e);
                }
            }

            return error;
        }
        #endregion