Blank Parameter Panel in Crystal Reports Viewer
问题 I'm building a web based (ASP .NET) application to display Crystal Reports. The reports itself have been build in Crystal Reports XI and I'm working in Visual Studio 2010. It's working but the Parameter Panel visible on the left of the report is blank, eg. it does not display any parameters even though the report has a few of them and the user is prompted to enter their values before the report is generated. I've found some information that this might be caused by an old version of Crystal