migrate report from ver 1.6.43 to ver 2013.1.3

reservenow

I created a report serveral years ago, code is below. I upgraded to the latest version of fastreports, the report displays the progress bar but not data is displayed.

I opened the .frx file in the designer, ran the report and it populates with data. I saved the report as a .cs file and use the code below to run the report. I need help to get the report to display when compiled for .net 4.0

public partial class CustomerActivity : System.Web.UI.Page
    {

        bool buildRpt = false;
        protected void Page_Load ( object sender, EventArgs e )
        {

        }
        protected void WebReport1_StartReport ( object sender, EventArgs e )
        {
            if (buildRpt)
            {
                FastReport.CustActivity myReport = new FastReport.CustActivity();
                //myReport.SetParameterValue("FacilityName", ddlFac.SelectedItem.Text);
                myReport.SetParameterValue("ReportTitle", ddlFac.SelectedItem.Text + " Members Activity For " + dtStartDate.SelectedDate.ToString("MMM d, yyyy") + " to " + dtEndDate.SelectedDate.ToString("MMM d, yyyy"));

                DataSet myD = new MemberFPP().MembersActivityByDateRange(Convert.ToInt32(ddlFac.SelectedValue), dtStartDate.SelectedDate, dtEndDate.SelectedDate);
                myD.Tables[0].TableName = "memberFPP";
                myReport.RegisterData(myD.Tables["memberFPP"], "vwcustactivity");
                WebReport1.Report = myReport;
            }
        }

        protected void btnInsertc_Click ( object sender, EventArgs e )
        {
            buildRpt = true;
            WebReport1.Visible = true;
            WebReport1.Refresh();
        }

    }