Asp.net crystal report setparameter value not working visual studio 2012

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C#

ASP.NET

CrystalReports

Asp.net crystal report setparamertvalue function not working visual studio 2012.I have table Players in database
in which countryCode value is 1...10.I want to show specific country record in crystal report but crystal report show all records instead of specific record countrycode 3

cn.Open();
           SqlCommand cmd = new SqlCommand("empp", cn);
           cmd.CommandType = CommandType.StoredProcedure;
           SqlDataAdapter da = new SqlDataAdapter(cmd);
           DataTable ds = new DataTable();
           da.Fill(ds);
           rdoc.Load(Server.MapPath("CrystalReport1.rpt"));
           rdoc.SetDataSource(ds);
           rdoc.SetParameterValue("conID", 3);
           CrystalReportViewer1.ReportSource = rdoc;
           CrystalReportViewer1.DataBind();
           cn.Close();

<pre lang="SQL">
create PROCEDURE empp
AS
BEGIN
	SELECT * FROM Players
END

{Players.countryCode}={?conID}

Guide me how to solve this problem