IN C#
Mycon obj = new Mycon();
obj.con.Open();
ReportDocument rpt = new ReportDocument();
rpt.Load(Server.MapPath("~/CrystalReport.rpt"));
SqlCommand cmd = new SqlCommand("Select * from Kidreg", obj.con);
SqlDataAdapter da = new SqlDataAdapter();
DataSet ds = new DataSet();
da.SelectCommand = cmd;
da.Fill(ds, "Kidreg");
rpt.SetDataSource(ds);
obj.con.Close();
CrystalReportViewer1.ReportSource = rpt;
CrystalReportViewer1.DataBind();