CR 2008/VS 2005/Winform : HOW TO REFRESH DATA ONLY ?

Hi,
I display a report in a CrystalReportViewer (Windows Form).
This report have NO Saved data, use some parameters, use a formula, and connect to a SQL Server via OLE DB.
I would like to REFRESH THE REPORT after some data has been modified in the Database. (just the DATA in the report, NOT the parameters, NOT their values, and NOT the formula).
PROBLEM : this SIMPLE TASK seems to be IMPOSSIBLE to do !!! (I can't beleive this !)
If I call Refresh() or ReportRefresh(), in the Viewer or in the ReportDocument, the formula AND the report Parameters have no more effects.
"ReuseParameterValuesOnRefresh = true " : DON'T WORK !!!
QUESTION : Is there a way to refresh DATA in a report without completely reload the entire report file & params & formulas & Data & ... ???
Thanks a lot for your help.
Steph

I have had a similar issues with report parameters.
The solution for me was to set the parameter value in the RefreshReport event of the ReportDocument not the crystalReportViewer.

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CR 2008/VS 2005/Winform : HOW TO REFRESH DATA ONLY ?

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