Crystal Reports Export Crystal Report

Good afternoon all

I faced a problem when I’m going to export crystal report. I use the function ExportToDisk(specify format that I look for , specify the file name and director);

Things go smooth if I don't add a parameter filed to the report BUT if I use it I got that error Missing parameter values.

What I should do plz?

Your cooperation is highly appreciated

IP Logged

using System;
using System.Data;
using System.Configuration;
using System.Data.OleDb;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}

protected void btnShow_Click(object sender, EventArgs e)
{
CrystalReportViewer1.ReportSource = getReportDocument();
CrystalReportViewer1.DataBind();
}

// Returns a ReportDocument object with the report and data loaded
private ReportDocument getReportDocument()
{

// File Path for Crystal Report
string repFilePath = Server.MapPath("Default2.rpt");

// Declare a new Crystal Report Document object
// and the report file into the report document
ReportDocument repDoc = new ReportDocument();
repDoc.Load(repFilePath);
//add param
repDoc.SetParameterValue("MyName", "Hussam");
repDoc.SetParameterValue("Old", "26");

// Set the datasource by getting the dataset from business layer
// In our case business layer is getCustomerData function

CrystalReportViewer1.ReportSource = repDoc;
// repDoc.SetDataSource(repFilePath);

return repDoc;

}

protected void btnExport_Click(object sender, EventArgs e)
{
// Get the report document
ReportDocument repDoc = getReportDocument();
// Stop buffering the response
Response.Buffer = false;
// Clear the response content and headers
Response.ClearContent();
Response.ClearHeaders();
try
{
// Export the Report to Response stream in PDF format and file name Customers
repDoc.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, "export");
// There are other format options available such as Word, Excel, CVS, and HTML in the ExportFormatType Enum given by crystal reports
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
ex = null;
}
}

}

I got the above code which handle my problem

IP Logged