A question about Records Deleting In Report

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic


   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)

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
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 Senior Member 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