问题
I converted our web site to asp.net 4.0 in VS 2010. Crystal reports (version 10.5.3700.0) renders the reports, but the toolbar will not display (so the print/change page functionality is gone).
I have set AspCompat="true" in the page that hosts the viewer, and tried just about every combination in the properties for the viewer, but the toolbar will not render. I have also tried different ClientIDModes, nothing seems to work.
The only work around I have come up with so far is to set SeparatePages="False" in the viewer and display the report on one page.
Any help would be greatly appreciated.
回答1:
This is because crystal reports has a different set of libraries for 2010.
you need to install the updated version the files can be found here ...
http://www.businessobjects.com/jump/xi/crvs2010/us2_default.asp
Not sure why ... this is likely something to do with API changes in visual studio but make sure you uninstal the older version first.
来源：https://stackoverflow.com/questions/3535339/crystal-reports-toolbar-is-gone-after-upgrading-from-vs2008-to-2010