Hi all.

I have created a project using MVC 4 application.

i have created a dataset model and .rdlc file using report viewer but i'm getting the following error when i run it

Error:



Can some one tell me what the error exact is and how to fix this



Hi Raj,

Is your datasource mapped properly like this

 ReportDataSource datasource = new ReportDataSource("vBase_Population", ds.Tables[0]);
            ReportViewer1.LocalReport.DataSources.Clear();
            ReportViewer1.LocalReport.DataSources.Add(datasource);        
            ReportViewer1.LocalReport.Refresh();

Please do ensure that dataset names are same.  In the code you provided the dataset name which you have assigned to report viewer and the dataset name which you use in code behind is different.

Also make sure that the dataset is mapped properly with the tablix.