Opc.Ua.Sample.CustomNodeManager2.Browse C# (CSharp) Method

        public virtual void Browse(
            OperationContext            context, 
            ref ContinuationPoint       continuationPoint, 
            IList<ReferenceDescription> references)
        {
            if (continuationPoint == null) throw new ArgumentNullException("continuationPoint");
            if (references == null) throw new ArgumentNullException("references");

            // check for view.
            if (!ViewDescription.IsDefault(continuationPoint.View))
            {
                throw new ServiceResultException(StatusCodes.BadViewIdUnknown);
            }

            ServerSystemContext systemContext = m_systemContext.Copy(context);

            lock (Lock)
            {
                // verify that the node exists.
                NodeState source = IsHandleInNamespace(continuationPoint.NodeToBrowse);

                if (source == null)
                {
                    throw new ServiceResultException(StatusCodes.BadNodeIdUnknown);
                }

                // validate node.
                if (!ValidateNode(systemContext, source))
                {
                    throw new ServiceResultException(StatusCodes.BadNodeIdUnknown);
                }

                // check for previous continuation point.
                INodeBrowser browser = continuationPoint.Data as INodeBrowser;

                // fetch list of references.
                if (browser == null)
                {
                    // create a new browser.
                    browser = source.CreateBrowser(
                        systemContext,
                        continuationPoint.View,
                        continuationPoint.ReferenceTypeId,
                        continuationPoint.IncludeSubtypes,
                        continuationPoint.BrowseDirection,
                        null,
                        null,
                        false);
                }

                // apply filters to references.
                for (IReference reference = browser.Next(); reference != null; reference = browser.Next())
                {
                    // create the type definition reference.        
                    ReferenceDescription description = GetReferenceDescription(context, reference, continuationPoint);

                    if (description == null)
                    {
                        continue;
                    }

                    // check if limit reached.
                    if (continuationPoint.MaxResultsToReturn != 0 && references.Count >= continuationPoint.MaxResultsToReturn)
                    {
                        browser.Push(reference);
                        continuationPoint.Data = browser;
                        return;
                    }

                    references.Add(description);
                }

                // release the continuation point if all done.
                continuationPoint.Dispose();
                continuationPoint = null;
            }
        }