How can i pass Parameter field to stored procedure in design view without coding

protected void Page_Load(object sender, EventArgs e)
{
    ReportDocument crystalReport = new ReportDocument();
    crystalReport.Load(Server.MapPath("~/CustomerReport.rpt"));
    Customers dsCustomers = GetData();
    crystalReport.SetDataSource(dsCustomers);
    CrystalReportViewer1.ReportSource = crystalReport;
}
 
private Customers GetData()
{
    string conString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
    SqlCommand cmd = new SqlCommand("Customers_GetCustomers");
    using (SqlConnection con = new SqlConnection(conString))
    {
        using (SqlDataAdapter sda = new SqlDataAdapter())
        {
            cmd.Connection = con;
            cmd.CommandType = CommandType.StoredProcedure;
            sda.SelectCommand = cmd;
            using (Customers dsCustomers = new Customers())
            {
                sda.Fill(dsCustomers, "DataTable1");
                return dsCustomers;
            }
        }
    }
}

private void GenerateReport()
        {
            Report rpt = new Report();
            rpt.Show();
            ReportDocument rptDoc = new ReportDocument();
            rptDoc.Load(ReportPath);
            rptDoc.SetParameterValue("@col1", txt1.Text);
            rptDoc.SetParameterValue("@col2", txt2.Text);    
            rpt.crystalreportviewer.ViewerCore.ReportSource = rptDoc;
}

//write your crystal Report code
ParameterFields MyParameterFields= new ParameterFields();
ParameterField MyparamField = new ParameterField();
// Set your parameter values
CrystalReportViewer1.ParameterFieldInfo = paramFields;
//write  your crystal Report code

CREATE PROCEDURE [dbo].[SPNameForyourReport]
	@YourParameter nchar(5)
AS
BEGIN
// Write you DB code
END