See How to prevent printing from the Print Preview window FAQ #7997.

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>I incorporated a Preview Function in report viewing, however, in report preview windows, there is a print button, which I don't like, because I don't want the user can print it in preview.
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>I try to define another windows to preview the report, it is successful. However, when I build it into my application (which is ShowWindow = 2 as Top-level form), the Report Preview Control Window appear again... what should I do?!