Opc.Ua.Client.Session.ReadDisplayName C# (CSharp) Method

        public void ReadDisplayName(
            IList<NodeId> nodeIds,
            out List<string> displayNames,
            out List<ServiceResult> errors)
        {
            displayNames = new List<string>();
            errors = new List<ServiceResult>();

            // build list of values to read.
            ReadValueIdCollection valuesToRead = new ReadValueIdCollection();

            for (int ii = 0; ii < nodeIds.Count; ii++)
            {
                ReadValueId valueToRead = new ReadValueId();

                valueToRead.NodeId = nodeIds[ii];
                valueToRead.AttributeId = Attributes.DisplayName;
                valueToRead.IndexRange = null;
                valueToRead.DataEncoding = null;

                valuesToRead.Add(valueToRead);
            }

            // read the values.
            DataValueCollection results = null;
            DiagnosticInfoCollection diagnosticInfos = null;

            ResponseHeader responseHeader = Read(
                null,
                Int32.MaxValue,
                TimestampsToReturn.Both,
                valuesToRead,
                out results,
                out diagnosticInfos);

            // verify that the server returned the correct number of results.
            ClientBase.ValidateResponse(results, valuesToRead);
            ClientBase.ValidateDiagnosticInfos(diagnosticInfos, valuesToRead);

            for (int ii = 0; ii < nodeIds.Count; ii++)
            {
                displayNames.Add(String.Empty);
                errors.Add(ServiceResult.Good);

                // process any diagnostics associated with bad or uncertain data.
                if (StatusCode.IsNotGood(results[ii].StatusCode))
                {
                    errors[ii] = new ServiceResult(results[ii].StatusCode, ii, diagnosticInfos, responseHeader.StringTable);
                    continue;
                }

                // extract the name.
                LocalizedText displayName = results[ii].GetValue<LocalizedText>(null);

                if (!LocalizedText.IsNullOrEmpty(displayName))
                {
                    displayNames[ii] = displayName.Text;
                }
            }
        }