.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 e

Answer 1

Please Check Your DataSet Name Is Correct or not.

 reportDataSource = new ReportDataSource
    {
       Name = "DataSet1",// Check This Line. Are You Sure DataSet Name is Correct?
       Value = ListData 
    };