Question

I store rdl’s remotely in a sql server database in binary format. I would like to use the report viewer control to display the report.

This seems like a simple concept but I keep finding conflicting tutorials which have several different approaches…none of which I can get to work.

Am I right in thinking that all I need is the report viewer control to get this working? If so, how is it possible to open a remotely stored .rdl file?

I also have a variable which has the rdl content stored in a string…not sure if this helps? So either I can use this string or pull the .rdl from the db…

I am a newbie to .NET so I am not sure how to best approach this…So far I have the following:

ReportViewer r = new ReportViewer();
//pass the rdl to report viewer
r.ProcessingMode = ProcessingMode.Remote;

Answer 1

You need to actually set it to Local processing mode not remote.

I’ve only ever loaded a RDL from a DLL not a database but I would look at the following API as it might have an overload to accept a string or you convert your string to a stream.

reportViewer.LocalReport.LoadReportDifinition

Here is the code I use to load from a DLL (might help to see in context)

Assembly assembly = Assembly.LoadFrom("MyReports.dll");
Stream stream = assembly.GetManifestResourceStream("Reports.MyReport.rdlc");
reportViewer.LocalReport.LoadReportDifinition(stream);