Please send Crystal Report with Parameters .

ReportDocument ClientReport = new ReportDocument();

ClientReport.Load(Server.MapPath("CrystalReport.rpt"));

CrystalDecisions.Shared.ParameterValues pval1 = new ParameterValues();

ParameterDiscreteValue pdisval1 = new ParameterDiscreteValue();

pdisval1.Value = "CLIENT_NAME";

pval1.Add(pdisval1);

ClientReport.DataDefinition.ParameterFields["@Parm1"].ApplyCurrentValues(pval1);

ClientReport.SetDataSource(ds);

// ClientReport.SetParameterValue("CLIENT_NAME", txtClient.Text.ToString());

CrystalReportViewer1.ReportSource = ClientReport;

CrystalReportViewer1.DataBind();

Error Msg: invalid index