.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

Be sure these two things are be Ok:

1) in Report1.rdlc[Design] (press Alt+Ctrl+D):

RightClick on Datasets and add dataset,

in the Dataset properties form, choose name :DataSet1

click on New... button next to the DataSource combocox

click on Object

on your project. select yourList1 or ...

and Finish.

now select Datasource and Available datasets on comboboxes.

repeat these steps and create DataSet2 ...

click OK and close the form.

2) in yourFormPrint code:

    private void frmPrint_Load(object sender, EventArgs e)
    {
        CreateReport1();
        System.Drawing.Printing.PageSettings ps = new 
               System.Drawing.Printing.PageSettings();
        ps.Margins.Top = CentimeterToPixel(0.9);
        ps.Margins.Left = CentimeterToPixel(0.9);
        ps.Margins.Right = CentimeterToPixel(0.9);
        ps.Margins.Bottom = CentimeterToPixel(0.9);
        ps.Landscape = false;
        ps.PaperSize =new PaperSize ("A4", 827, 1169);
        ps.PaperSize.RawKind = (Int32)(System.Drawing.Printing.PaperKind.A4);
        //psize.RawKind = (int)PaperKind.A4;
        //ps.PaperSize = psize;
        reportViewer1.SetPageSettings(ps);
        this.reportViewer1.RefreshReport();
        this.reportViewer1.SetDisplayMode(DisplayMode.PrintLayout);
        WindowState = FormWindowState.Maximized;
    }
    private int CentimeterToPixel(double Centimeter)
    {
        int  pixel = -1;
        using (Graphics g = this.CreateGraphics())
        {
            pixel =Convert.ToInt32 ( Centimeter * (g.DpiY / 2.54));
        }
        return pixel;
    }
    private void CreateReport1()
    {
        reportViewer1.LocalReport.DataSources.Clear();
        reportViewer1.ProcessingMode = 
                     Microsoft.Reporting.WinForms.ProcessingMode.Local;


        reportViewer1.LocalReport.ReportEmbeddedResource = 
                        "yourProjectName.Report1.rdlc";
        ReportDataSource RDS = new ReportDataSource();
        RDS.Name = "DataSet1";
        RDS.Value = yourPublicList1;
        reportViewer1.LocalReport.DataSources.Add(RDS);

        ReportDataSource RDS2 = new ReportDataSource();
        RDS2.Name = "DataSet2";
        RDS2.Value = yourPublicList2;
        reportViewer1.LocalReport.DataSources.Add(RDS2);
    }