te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>c# - Date Format is not showing right in logfile - Stack Overflow

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    c# - Date Format is not showing right in logfile - Stack Overflow

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    I'm trying to do my own Logger I have this function:

     public static void LogInfo(string message)
 {
     if (!_settings.LogInfo) return;

     var timestamp = DateTime.Now.ToString();  // Default format if DateFormat is empty
     if (!string.IsNullOrEmpty(_settings.DateFormat))
     {
         try
         {
             timestamp = DateTime.Now.ToString(_settings.DateFormat);
         }
         catch
         {
             // If format is invalid, fall back to default format
             timestamp = DateTime.Now.ToString();
         }
     }
     var logEntry = new StringBuilder();
     logEntry.AppendLine($"[{timestamp}] INFO: {message}");
     logEntry.AppendLine("----------------------------------------");

     var fileName = _settings.SeparateLogFiles ? "info" : "combined";
     var logFile = Path.Combine(_settings.LogPath, $"{fileName}_{DateTime.Now:yyyy-MM-dd}.log");

     WriteToLog(logFile, logEntry.ToString());

     // Auto cleanup if enabled
     if (_settings.AutoCleanupLogs)
     {
         CleanupOldLogs();
     }
 }

    Which I call basically like this:

    Logger.LogInfo("App Started")

    Everythink works fine and I get message in my logfile but it looks like this:

    [yyyy-MM-dd HH:mm:ss] INFO: Application started

    It shows format of the timestamp instead of actual timestamp and have no idea why.

    Also my settings:

    Anyone have idea what could be wrong? I even don't know where it took this format: yyyy-MM-dd HH: mm: ss

    Because I have different in my settings

    If I'm not loading the format from my settings but set it up directly it works

    I'm trying to do my own Logger I have this function:

     public static void LogInfo(string message)
 {
     if (!_settings.LogInfo) return;

     var timestamp = DateTime.Now.ToString();  // Default format if DateFormat is empty
     if (!string.IsNullOrEmpty(_settings.DateFormat))
     {
         try
         {
             timestamp = DateTime.Now.ToString(_settings.DateFormat);
         }
         catch
         {
             // If format is invalid, fall back to default format
             timestamp = DateTime.Now.ToString();
         }
     }
     var logEntry = new StringBuilder();
     logEntry.AppendLine($"[{timestamp}] INFO: {message}");
     logEntry.AppendLine("----------------------------------------");

     var fileName = _settings.SeparateLogFiles ? "info" : "combined";
     var logFile = Path.Combine(_settings.LogPath, $"{fileName}_{DateTime.Now:yyyy-MM-dd}.log");

     WriteToLog(logFile, logEntry.ToString());

     // Auto cleanup if enabled
     if (_settings.AutoCleanupLogs)
     {
         CleanupOldLogs();
     }
 }

    Which I call basically like this:

    Logger.LogInfo("App Started")

    Everythink works fine and I get message in my logfile but it looks like this:

    [yyyy-MM-dd HH:mm:ss] INFO: Application started

    It shows format of the timestamp instead of actual timestamp and have no idea why.

    Also my settings:

    Anyone have idea what could be wrong? I even don't know where it took this format: yyyy-MM-dd HH: mm: ss

    Because I have different in my settings

    If I'm not loading the format from my settings but set it up directly it works

    • c#
    • date
    • logging
    • format
    Share Improve this question edited Feb 17 at 13:58 Bill Tür stands with Ukraine 3,51530 gold badges40 silver badges51 bronze badges asked Feb 17 at 13:26 Johny WaveJohny Wave 1411 gold badge3 silver badges12 bronze badges 6
    • 2 Tbh: If this isn't about learning, scrap it all and use the canonical Logging API (ILogger) and one of the Logging Frameworks (MS, NLog, Serilog, ...) which all support files. – Fildor Commented Feb 17 at 13:32
    • 1 That out of the way: I cannot reproduce how the format would be the output of that code. Do you have a minimal reproducible example? – Fildor Commented Feb 17 at 13:35
    • 3 Are the " surrounding the format in your settings intentional? – Bill Tür stands with Ukraine Commented Feb 17 at 14:02
    • Yeah you have extra quotes around the time format string. This will cause the text between the quotes to be returned verbatim from the string formatter. – Matthew Watson Commented Feb 17 at 16:21
    • 1 See learn.microsoft/en-us/dotnet/standard/base-types/… for details. particularly the part that says By enclosing the entire literal string in quotation marks or apostrophes – Matthew Watson Commented Feb 17 at 16:23
     |  Show 1 more comment

    1 Answer 1

    Reset to default 0

    Add a log statement to check whether _settings.DateFormat contains the expected value. This will help verify if the correct format is being applied. For example:

    Console.WriteLine($"DateFormat: {_settings.DateFormat}");

    If the output does not match the expected format, ensure that _settings.DateFormat is correctly assigned from the configuration source.

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