Binding a Dataset to Crystal Reports

anybody have example code how to do this? (my page behind code is in vb.net)

thanks

Code:

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Dim crReport as crystalreport1()
            crReport.setdatasource = ds

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this is all you have to do to bind a ds to a report if your going to export it I dont recall if when your binding it to a report viewer control how it goes but its fairly simple and there should be a few examples online espically at crystal descion's web site