{"record":{"id":"4be01ae64f579d9f","repo":"OdysseusYuan/LKY_OfficeTools","slug":"serv-name-displayname-serv-display","errorCode":null,"errorMessage":"尝试修改服务 {serv_name} 的 DisplayName 信息为 {serv_displayname}，但该服务未安装！","messagePattern":"尝试修改服务 (.+?) 的 DisplayName 信息为 (.+?)，但该服务未安装！","errorType":"exception","errorClass":"Exception","httpStatus":null,"severity":"warning","filePath":"LKY_OfficeTools/Common/Com_ServiceOS.cs","lineNumber":438,"sourceCode":"                            //非空判断，若返回值为空，则为假\n                            if (string.IsNullOrEmpty(modify_result))\n                            {\n                                throw new Exception($\"执行修改 {serv_name} DisplayName 参数时，返回值为空！\");\n                            }\n\n                            //判断是否修改 DisplayName 成功\n                            if (modify_result.Contains(\"成功\") || modify_result.ToLower().Contains(\"success\"))\n                            {\n                                return true;\n                            }\n                            else\n                            {\n                                throw new Exception($\"修改服务 {serv_name} 的 DisplayName 信息为 {serv_displayname} 失败！\");\n                            }\n                        }\n                        else\n                        {\n                            throw new Exception($\"尝试修改服务 {serv_name} 的 DisplayName 信息为 {serv_displayname}，但该服务未安装！\");\n                        }\n                    }\n                    catch (Exception Ex)\n                    {\n                        new Log(Ex.ToString());\n                        return false;\n                    }\n                }\n\n                internal static bool Description(string serv_name, string serv_description)\n                {\n                    try\n                    {\n                        if (Query.IsCreated(serv_name))\n                        {\n                            //已经创建服务，才进行修改\n                            string cmd_modify_desc = $\"sc description \\\"{serv_name}\\\" \\\"{serv_description}\\\"\";\n                            var modify_result = Com_ExeOS.Run.Cmd(cmd_modify_desc);","sourceCodeStart":420,"sourceCodeEnd":456,"githubUrl":"https://github.com/OdysseusYuan/LKY_OfficeTools/blob/6f9a1bd471918f3310e6be4a6d7f42d0d6e467cf/LKY_OfficeTools/Common/Com_ServiceOS.cs#L420-L456","documentation":"Thrown in Com_ServiceOS.Config.Modify.DisplayName's else-branch when Query.IsCreated(serv_name) is false at entry (Com_ServiceOS.cs:436-439), guarding against editing a non-existent service. The throw is caught by DisplayName's own catch and it returns false (Com_ServiceOS.cs:441-445).","triggerScenarios":"Calling Modify.DisplayName for an unregistered, already-deleted, or misspelled service, or when GetServices throws so IsCreated returns false.","commonSituations":"Configuration step before install; name drift after a rename; using DisplayName where ServiceName was required.","solutions":["Pre-check Query.IsCreated and Create the service first if absent.","Verify the ServiceName with `sc query`.","Treat false as 'service not present; nothing to change'.","Order Create before Modify."],"exampleFix":"// before\nCom_ServiceOS.Config.Modify.DisplayName(name, display);\n\n// after\nif (Com_ServiceOS.Query.IsCreated(name))\n    Com_ServiceOS.Config.Modify.DisplayName(name, display);","handlingStrategy":"validation","validationCode":"if (Com_ServiceOS.Query.IsCreated(serv_name))\n    Com_ServiceOS.Config.Modify.DisplayName(serv_name, serv_displayname);\n// else: nothing to reconfigure","typeGuard":"static bool ServiceRegistered(string name) => Com_ServiceOS.Query.IsCreated(name);","tryCatchPattern":null,"preventionTips":["Pre-check IsCreated before Modify; Create must precede Modify.","Treat the false return as 'service not present'.","Confirm ServiceName with `sc query`.","Order install before any configuration step."],"tags":["windows-service","scm","service-config","not-found"],"backgroundTag":null,"analyzedSha":"6f9a1bd471918f3310e6be4a6d7f42d0d6e467cf","analyzedAt":"2026-08-13T18:00:34.810Z","schemaVersion":2},"datasetVersion":"2026-08-13T19:17:28.613Z"}