.rdlc Report - Cannot create a data reader for dataset 'DataSet1'

Question

I have created a .rdlc-Report under VS 2012 using the report wizard and added data source and dataset. When I try to render the report using the code below I get following error message:

Cannot create a data reader for dataset 'DataSet1'.

bytes = localReport.Render("PDF", sdeviceinfo, out smimetype, out sencoding, out sfilenameextension, out streamids, out myWarnings);

Answer 1

I have same problem that "Cannot create a data reader for dataset 'zzz'"

The answer is ReportDataSource(string xxx, DataTable yyy)

You should use the right name. xxx should be zzz

Answer 2

My 'gotcha' was the discovery that DataSet was not the same as Dataset.

Answer 3

You have to give "DataSet1", otherwise it will not work.