A question about Records Deleting In Report

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   I have three ways to clear records in report :

CXTPReportControl m_report;

1 . m_report.GetRecords()->RemoveAll(); //but it can't release space

2.m_report.ResetContent();

3.
int RowNumAll = m_report.GetRecords()->GetCount();
// 
	if (RowNumAll>0)
	{
		for (int i = 0;i<RowNumAll;++i)
		{
			CXTPReportRecord *pRecord = m_report.GetRecords()->GetAt(0);

			if (!pRecord)
			{
				return false;
			}

			m_report.RemoveRecordEx(pRecord);
		}
	}

When the report comtrol contains a mass of records, it will be quite slow to clear the report by the ways above, for example , I have create a report containning three million records ,and the time spent to clear shis report is up to 20mimutes.. who konws the best to figure out this problem?MY Computer config: 
				(Processor: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz (8 CPUs), ~3.6GHz, 				  Memory: 8192MB RAM)

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linyilong Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 October 2016 Location: China Status: Offline Points: 7	Post Options Post Reply Quote linyilong Report Post Thanks(0) Quote Reply Topic: A question about Records Deleting In Report Posted: 17 October 2016 at 11:42pm
	I have three ways to clear records in report : CXTPReportControl m_report; 1 . m_report.GetRecords()->RemoveAll(); //but it can't release space 2.m_report.ResetContent(); 3. int RowNumAll = m_report.GetRecords()->GetCount(); // if (RowNumAll>0) { for (int i = 0;i<RowNumAll;++i) { CXTPReportRecord *pRecord = m_report.GetRecords()->GetAt(0); if (!pRecord) { return false; } m_report.RemoveRecordEx(pRecord); } } When the report comtrol contains a mass of records, it will be quite slow to clear the report by the ways above, for example , I have create a report containning three million records ,and the time spent to clear shis report is up to 20mimutes.. who konws the best to figure out this problem? MY Computer config: (Processor: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz (8 CPUs), ~3.6GHz, Memory: 8192MB RAM)
	I am whatever

olebed Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 01 July 2014 Location: Ukraine Status: Offline Points: 841	Post Options Post Reply Quote olebed Report Post Thanks(0) Quote Reply Posted: 26 October 2016 at 6:15am
	Hello, For millions records we advise to use virtual mode in ReportControl. Regards, Oleksandr Lebed