Tip: MS Web Based Report Viewer Showing Blank Screen

If you are encountering problem with blank report, please make sure that all the report's input parameters are defined in your code, i.e. where you've written logic to populate the report. The problem that I faced was I forgotten to fill in one of the parameters and it cost me few hours to find out.

Tip: Missing Report Viewer 2008 Component: Could not load file or assembly 'Microsoft.ReportViewer.WebForms

You will get this error if you did not install the MS Report Viewer 2008.



So get one from Microsoft and install it.
Microsoft Report Viewer Redistributable 2008