[Crystal Report Tips-development-2] report content instant Refresh

Tips | refresh | Crystal Report Many friends are having this little problem when they're programming with Crystal Reports.
The report is displayed correctly the first time it is loaded, but the contents of the report are not updated in time after the condition is replaced.
Although the Refresh method has been used on the Crviewer

In fact, as long as VB in a simple to fill the record set before the use of Discardsaveddata way to release the data cached in the Crystal Report can be

' Clear the data persisted in the report
Objcrreport.discardsaveddata
' Assign to report data
ObjCRReport.Database.SetDataSource rst

There is no Discardsaveddata method in the Crystal Report version included with VSNet2003.
I did not have a data refresh situation when I used it, so I didn't do a test directly.
But you can release the component when the interface is overloaded
Objreportdocument.dispose ()