asp.net Crystal Reports in Entity Framework

if (!Page.IsPostBack)
            { CrystalReportViewer1.Visible = true;
                ReportDocument rptDoc = new ReportDocument();
                CreportsEntities ce = new CreportsEntities();
                var qr = ce.products.Select(per => new { ProductDate = per.ProductDate,
                    ProductId = per.ProductId, 
                    ProductName = per.ProductName, 
                    ProductPrice = per.ProductPrice }).ToList();
                rptDoc.Load(Server.MapPath("~/CrystalReport1.rpt"));
                rptDoc.SetDataSource(qr);
                CrystalReportViewer1.ReportSource = rptDoc;
               
                CrystalReportViewer1.DataBind();
            }