Question

I have a following problem. I made an application that generates rdlc reports for one of my clients. I used TableAdapters to fill the DataTables that I use in those reports. The problem is that my client has a new database and he wants to be able to use that application to generate reports from both the old and the new one. I thought it was possible to change the connection that my TableAdapters use so that they would just take the data from the database that my client selects (both databases have identical schema’s) but I was told that that cannot be done. So is it possible to change the DataTable that rdlc report uses?
How can I solve this problem

Answer 1

You can assign any datatable to rdlc at run time using following code.

        DataTable dtTest =obj.SelectDepartment(1);//Here I am selecting the data from DB

        this.reportViewer1.RefreshReport();
        reportViewer1.Visible = true;
        ReportDataSource rds = new ReportDataSource();
        reportViewer1.Reset();
        reportViewer1.ProcessingMode = ProcessingMode.Local;
        LocalReport rep = reportViewer1.LocalReport;
        rep.Refresh();

        rep.ReportEmbeddedResource = "Report.rdlc";//Provide full path
        rds.Name = "DataSet1_tblAdapter";//Provide refrerence to data set which is used to   design the rdlc. (DatasetName_TableAdapterName)
        rds.Value = dtTest;

        rep.DataSources.Add(rds);
        this.reportViewer1.RefreshReport();