public Node[] get_List_Nodes(string authTocken, long parent_id) { DocumentManagementClient docManClient = new DocumentManagementClient(); CWS.DocumentManagement.OTAuthentication otAuthDocManger = new CWS.DocumentManagement.OTAuthentication(); otAuthDocManger.AuthenticationToken = authTocken; Node[] nodes = null; try { nodes = docManClient.ListNodes(ref otAuthDocManger, parent_id, true); } catch (FaultException e) { MessageBox.Show(e.Message); } catch (Exception e) { MessageBox.Show(e.Message); } finally { docManClient.Close(); } return(nodes); }