0
如何在此处解析'引用对象的值为空'.....
logDTO对象具有字符串类型的属性。
某些属性的值为空。它会抛出上面引用的错误。我尝试使用.ToString()但仍然抛出错误。被引用对象的值为空
Public Sub WriteJobLog(ByVal logDTO As JobLogDTO)
Dim strArray As String() = {logDTO.Mode.ToString(), logDTO.UniqueId.ToString(), logDTO.ThreadId.ToString(), _
logDTO.StartTime.ToString(), logDTO.FinishTime.ToString(), logDTO.TimeTaken.ToString(), _
logDTO.PropertyId.ToString(), logDTO.ChannelId.ToString(), logDTO.URL.ToString(), _
logDTO.ExceptionOrResult.ToString(), logDTO.AvblWorkerThread.ToString(), logDTO.AvblPortThread.ToString(), _
logDTO.AcqrdWorkerThread.ToString(), logDTO.AcqurdPortThread.ToString(), logDTO.JobsToProcess.ToString()}
Dim lLogObj As Logging = New Logging(JobType.JOB_TRANSACTTIONAL)
lLogObj.WriteLogFile(String.Join(Configuration.LogDelimiter, strArray))
End Sub
JobLogDTO
public class JobLogDTO
{
public string Mode { get; set; }
public string UniqueId { get; set; }
public string ThreadId { get; set; }
public string StartTime { get; set; }
public string FinishTime { get; set; }
public string TimeTaken { get; set; }
public string PropertyId { get; set; }
public string ChannelId { get; set; }
public string URL { get; set; }
public string ExceptionOrResult { get; set; }
public string AvblWorkerThread { get; set; }
public string AvblPortThread { get; set; }
public string AcqrdWorkerThread { get; set; }
public string AcqurdPortThread { get; set; }
public string JobsToProcess { get; set; }
}
UPDATE:logDTO对象的
值
AcqrdWorkerThread "24" String
AcqurdPortThread "24" String
AvblPortThread "400" String
AvblWorkerThread "399" String
ChannelId Nothing String
ExceptionOrResult Nothing String
FinishTime Nothing String
JobsToProcess "24" String
Mode "Parallel" String
PropertyId Nothing String
StartTime "04.04.2013 12:17:25" String
ThreadId "5" String
TimeTaken Nothing String
UniqueId "97693c1b-2bbc-4e40-a542-291568aeee4c" String
URL Nothing String
什么logDTO和logDTO.Mode的价值? – 2013-04-04 06:24:07
您是否检查logDTO是否为无。使用断点 – 2013-04-04 06:37:43
@Adrian Godong:增加logDTO的价值。请找到更新的问题。 – Sunil 2013-04-04 06:48:08