Crystal Report Problem

Question

I'am Begginer  I just recently installed Visual Studio 2015 and It's Crystal Report, everything's working good   my Crystal report but I can't display anything. Can you pls check if there is something I'm missing with this code:

 

 

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();