I'm Using Crystal Reports within ASP.Net

I’m trying to export a crystal report to PDF…everything seems to work OK with an existing (saved) report. However when I try to do it with a report that has been just created it doesn’t work!
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Load report failed.
crReportDocument.Load("ReportName.rpt")
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Is there a way to do it?
Or shall I just save the created report then load it?
& How can I save the report?!!
Does saving the reports means that the user has to have write access to the folder? cuz this is a web application

Hi,

   You have to save report to disk before loading it. Better you create a folder in the application and include the report in that folder and give the path to ReportDocument. You need not share the folder at all in this case.

 Thanks
 Mohith

I've been trying to save the dynamicallly generated reports within the code, but seems that i'm missing something here
i'm kinda lost with the arguments of the SaveAs() method
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Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'Put user code to initialize the page here
        cnReport2.Open()
        Dim report As New CrystalReport2

        DsReport2.Clear()
        daReport2.SelectCommand.CommandText = "SELECT Customer.AnnualProfitRate, Customer.CustomerAccountNbr, Customer.CustomerName, Customer.FacilityAmount, Customer.FacilityPeriod, Customer.FirstDay, Customer.FirstMonth, Customer.FirstYear, Customer.FlatProfitRate, Customer.PrincipalAmount, Customer.ProfitAmount, Customer.RepaymentAmount, Repayment2.FacilityBalance, Repayment2.RepaymentAmount AS Expr1, Repayment2.RepaymentNbr FROM Customer, Repayment2"
        daReport2.Fill(DsReport2, "Customer")

        CrystalReportViewer1.Visible = True

        CrystalReportViewer1.ReportSource = report

        report.SetDataSource(DsReport2)
        'i'm LOST with both arguments, either an invalid file name or file format is not defined!
        ' report.SaveAs(, )

        cnReport2.Close()

    End Sub