C# 运行循环时出现内存不足异常
我在这一点上感到困惑,我有以下代码:C# 运行循环时出现内存不足异常,c#,.net,C#,.net,我在这一点上感到困惑,我有以下代码: while (dal.Read()) { if (FiltersAppliedForThisJob(dal.GetInt(0))) continue; var j = 0; if (SettingsManager.OpsMgrSettings.JobViewServiceLis
while (dal.Read())
{
if (FiltersAppliedForThisJob(dal.GetInt(0)))
continue;
var j = 0;
if (SettingsManager.OpsMgrSettings.JobViewServiceList.IsNotNull() &&
SettingsManager.OpsMgrSettings.JobViewServiceList.Count > 0)
if (!ThisJobHasASupportedService(dal.GetInt(0)))
continue;
var newJobGridRow = AddRowToJobGridWithJobID(dal.GetInt(0),
ref j);
BoldThisJobGridRowIfItIsUpdated(newJobGridRow, dal);
var jobno = dal2.GetJobNo(dal.GetInt(0).ToString());
if (locns2view.Length > 0)
_jobgrid.Rows[newJobGridRow].Visible = locns2view.Contains(jobno.Substring(0, 2));
var col = 2;
if (j < _jobgrid.ColumnCount)
for (i = 0; i < str1.Length; i++)
{
if (str1[i].Length <= 0)
continue;
if (!dal.IsFieldNull(col))
PlaceValuesInJobGridCells(dtype, i, dal2, str1, jobno, newJobGridRow, j, dal, col);
j++;
col++;
}
if (_jobgrid[0, newJobGridRow].Value.ToString() == prevjobid)
_jobgrid.Rows[newJobGridRow].Selected = true;
}
SortJobGridColumns();
}
另外,如果我删除函数调用FiltersAppliedForThisJob(dal.GetInt(0)
,我不会得到一个错误消息
以下是功能代码:
private bool FiltersAppliedForThisJob(int p)
{
var filter_datefrom = SettingsManager.OpsMgrSettings.MainView_DateFrom;
var filter_dateto = SettingsManager.OpsMgrSettings.MainView_DateTo;
var filter_status = SettingsManager.OpsMgrSettings.MainView_JobStatus;
var jobNumTbl = dal.Get_JobNumber(p);
var jobStatus = GetJobStatus(p);
var jobdate = jobNumTbl.Date;
var jobdate_res = false;
var jobstat_res = false;
var isFiltered = false;
if (jobdate.HasValue)
{
//both have values
if (filter_datefrom.HasValue && filter_dateto.HasValue)
{
if (DateTime.Compare(jobdate.Value.Date, filter_datefrom.Value.Date) < 0 ||
DateTime.Compare(jobdate.Value.Date, filter_dateto.Value.Date) > 0)
jobdate_res = true;
}
//only datefrom has value
else if (filter_datefrom.HasValue)
{
if (DateTime.Compare(jobdate.Value.Date, filter_datefrom.Value.Date) < 0)
jobdate_res = true;
}
//only datato has value
else if (filter_dateto.HasValue)
{
if (DateTime.Compare(jobdate.Value.Date, filter_dateto.Value.Date) > 0)
jobdate_res = true;
}
}
if (jobStatus.HasValue)
{
if (!filter_status.Equals(2))
if (!filter_status.Equals(jobStatus))
jobstat_res = true;
}
if (jobdate_res || jobstat_res)
isFiltered = true;
return isFiltered;
}
private bool filters应用于此作业(int p)
{
var filter_datefrom=SettingsManager.OpsMgrSettings.MainView_datefrom;
var filter_dateto=SettingsManager.OpsMgrSettings.MainView_dateto;
var filter_status=SettingsManager.OpsMgrSettings.MainView_作业状态;
var jobNumTbl=dal.Get_JobNumber(p);
var jobStatus=GetJobStatus(p);
var jobdate=jobNumTbl.Date;
var jobdate_res=假;
var jobstat_res=假;
var isFiltered=false;
if(jobdate.HasValue)
{
//两者都有价值
if(filter\u datefrom.HasValue&&filter\u dateto.HasValue)
{
if(DateTime.Compare(jobdate.Value.Date,filter_datefrom.Value.Date)<0||
DateTime.Compare(jobdate.Value.Date,filter_dateto.Value.Date)>0)
jobdate_res=真;
}
//只有datefrom才有价值
else if(filter_datefrom.HasValue)
{
if(DateTime.Compare(jobdate.Value.Date,filter_datefrom.Value.Date)<0)
jobdate_res=真;
}
//只有datato有值
else if(filter_dateto.HasValue)
{
if(DateTime.Compare(jobdate.Value.Date,filter_dateto.Value.Date)>0)
jobdate_res=真;
}
}
if(jobStatus.HasValue)
{
如果(!filter_status.Equals(2))
如果(!filter_status.Equals(作业状态))
jobstat_res=真;
}
如果(工作日期|工作状态|工作状态|
isFiltered=true;
返回被过滤;
}
不确定这是否是足够的信息。如果您需要我提供更多信息,请告诉我。问题已解决。应用程序在筛选之前从数据库中提取了所有信息,这是大量数据。在加载数据之前,我在查询中添加了额外的筛选。现在一切都很好。谢谢大家。您调试并查看了吗它被调用了多少次,还要检查任务管理器以查看每个循环使用的内存。这是很多代码,你能缩小搜索范围吗?是的,任务管理器跳得很高,除非我将消息框扔到那里,或者移除为该作业应用的
过滤器函数调用在包含的方法上设置断点e> 循环。当它点击它时,然后点击F5。如果它再次点击它,请检查您的调用堆栈以查看它来自何处。如果这不是罪魁祸首,请尝试使用您正在调用的其他方法。您可能会在不知道的情况下进行递归调用。OutOfMemoryException发生时的堆栈跟踪是什么?
private bool FiltersAppliedForThisJob(int p)
{
var filter_datefrom = SettingsManager.OpsMgrSettings.MainView_DateFrom;
var filter_dateto = SettingsManager.OpsMgrSettings.MainView_DateTo;
var filter_status = SettingsManager.OpsMgrSettings.MainView_JobStatus;
var jobNumTbl = dal.Get_JobNumber(p);
var jobStatus = GetJobStatus(p);
var jobdate = jobNumTbl.Date;
var jobdate_res = false;
var jobstat_res = false;
var isFiltered = false;
if (jobdate.HasValue)
{
//both have values
if (filter_datefrom.HasValue && filter_dateto.HasValue)
{
if (DateTime.Compare(jobdate.Value.Date, filter_datefrom.Value.Date) < 0 ||
DateTime.Compare(jobdate.Value.Date, filter_dateto.Value.Date) > 0)
jobdate_res = true;
}
//only datefrom has value
else if (filter_datefrom.HasValue)
{
if (DateTime.Compare(jobdate.Value.Date, filter_datefrom.Value.Date) < 0)
jobdate_res = true;
}
//only datato has value
else if (filter_dateto.HasValue)
{
if (DateTime.Compare(jobdate.Value.Date, filter_dateto.Value.Date) > 0)
jobdate_res = true;
}
}
if (jobStatus.HasValue)
{
if (!filter_status.Equals(2))
if (!filter_status.Equals(jobStatus))
jobstat_res = true;
}
if (jobdate_res || jobstat_res)
isFiltered = true;
return isFiltered;
}