c# - How to dispose a crystal report? -

i new crystal report. have generate reports multiple pages. how dispose reports after use. tried following code.

protected void crystalreportviewer1_unload(object sender, eventargs e) {   report.close();   report.dispose(); } 

but gives error when trying navigate other pages. can suggest way dispose report? in event suppose close report?

be sure , call garbage collection manually after disposing report or form viewer on it. crytal/.net not clean (or fast enough) if don't.