When I create a new Reporting Services report or try to open an existing report (that has been working) in Visual Studio 2008. I cannot view the design. I get no error message and it only shows html code in the "Design View". I've tried reinstalling VS2008 and BIDS, but hasn't worked. This was all working when I last used it 2 weeks ago.
-nate
I had the same problem, and Kyle's was the exact answer. In my case, the Error List window (In Visual Studio 2008 IDE: View > Error List) displayed three errors, all the same:
The three lines looked like this:
On removing the DataType="Integer" from each line, as below, the report displayed correctly:
My assumption/guess is that the report was modified from the Report Manager web page (http://localhost/reports/)