how to suppress "enter parameter values" screen in crystal reports for visual studio 2010

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C#3.5

I have passed parameter values through code.....but wnenver execution time..it shows screen like enter parameter values as dialog box...how can i supress/delete the dialog box...
please help me

dsDenomInfo = objCustomerBLL.GetSalesbycategory();
if (dsDenomInfo.Tables.Count > 0)
{
    if (dsDenomInfo.Tables[0].Rows.Count > 0)
    {
        for (int i = 0; i < dsDenomInfo.Tables[0].Rows.Count; i++)
        {
            DataRow dataRow = datagrid.NewRow();
            dataRow[0] = dsDenomInfo.Tables[0].Rows[i].ItemArray[0].ToString();
            dataRow[1] = dsDenomInfo.Tables[0].Rows[i].ItemArray[1].ToString();
            datagrid.Rows.Add(dataRow);

        }
}}
ReportDocument CustomerReport = new ReportDocument();
           CustomerReport.Load(@"D:\babu\easyretail_latest\EasyRetailPOSNETv2.0\EasyRetailPOSNETTSv3.0\CrystalRpt\CrystalReport1.rpt");

ParameterFieldDefinitions crParameterFieldDefinitions;
ParameterFieldDefinition crParameterFieldDefinition;
ParameterValues crParameterValues = new ParameterValues();
ParameterDiscreteValue crParameterDiscreteValue = new ParameterDiscreteValue();

crParameterDiscreteValue.Value = "SSV Fashions";
crParameterFieldDefinitions = CustomerReport.DataDefinition.ParameterFields;
crParameterFieldDefinition = crParameterFieldDefinitions["Company"];
crParameterValues = crParameterFieldDefinition.CurrentValues;
List<datarow> PrintFormat = EZRConstants.PRINTFORMAT;
if (PrintFormat.Count > 0)
{
    crParameterDiscreteValue.Value = ((DataRow)PrintFormat[0])[4].ToString();
}
else
{
    crParameterDiscreteValue.Value = "";
}
crParameterFieldDefinitions = CustomerReport.DataDefinition.ParameterFields;
crParameterFieldDefinition = crParameterFieldDefinitions["Address"];
crParameterValues = crParameterFieldDefinition.CurrentValues;
crParameterValues.Clear();
crParameterValues.Add(crParameterDiscreteValue);
crParameterFieldDefinition.ApplyCurrentValues(crParameterValues);
               CustomerReport.SetDataSource(datagrid);
crystalReportsViewer3.ViewerCore.ReportSource = CustomerReport;
crystalReportsViewer3.ViewerCore.Refresh();