Opc.Ua.Com.Client.ComHdaBrowserClient.GetBranchPosition C# (CSharp) Method

        private string GetBranchPosition(string parentId, string name)
        {
            string methodName = "IOPCHDA_Browser.GetBranchPosition";

            // need to move down to get the browse position.
            if (!String.IsNullOrEmpty(name))
            {
                if (!ChangeBrowsePosition(OPCHDA_BROWSEDIRECTION.OPCHDA_BROWSE_DOWN, name))
                {
                    return null;
                }
            }

            string itemId = null;

            try
            {
                IOPCHDA_Browser server = BeginComCall<IOPCHDA_Browser>(methodName, true);
                server.GetBranchPosition(out itemId);
            }
            catch (Exception e)
            {
                ComCallError(methodName, e);
                return null;
            }
            finally
            {
                EndComCall(methodName);

                // restore browse position.
                if (!String.IsNullOrEmpty(name))
                {
                    ChangeBrowsePosition(OPCHDA_BROWSEDIRECTION.OPCHDA_BROWSE_DIRECT, parentId);
                }
            }

            return itemId;
        }