Crystal Report PDF created - but no data

I have written the code below to create and populate a crystal report, and then save it to a PDF file without displaying it.  The pdf file is created, but the 4 data fields are blank.

Dim reportData As New DataTable("MyReportTable")
        reportData.Columns.Add("EMPLOYEE_NAME")
        reportData.Columns.Add("EMPLOYEE_ID")
        reportData.Columns.Add("DEPARTMENT")
        reportData.Columns.Add("DATE")
        Dim row As DataRow = reportData.NewRow()

        row("EMPLOYEE_NAME") = "FirstName LastName"
        row("EMPLOYEE_ID") = "My ID"
        row("DEPARTMENT") = "123"
        row("DATE") = "04/16/2013"

        Dim report As New ReportDocument()
        report.Load(Request.PhysicalApplicationPath & "\MyReport.rpt")
        report.Database.Tables("MyReportTable").SetDataSource(reportData)

        Dim exportOptions As New ExportOptions
        Dim diskFileDestinationOptions As New DiskFileDestinationOptions()
        Dim formatTypeOptions As New PdfRtfWordFormatOptions()

        diskFileDestinationOptions.DiskFileName = "C:\foo.pdf"

        exportOptions.ExportDestinationType = ExportDestinationType.DiskFile
        exportOptions.ExportFormatType = ExportFormatType.PortableDocFormat
        exportOptions.DestinationOptions = diskFileDestinationOptions
        exportOptions.FormatOptions = formatTypeOptions
        report.Export(exportOptions)

Can anyone see if I have done something wrong?  Is there a better way to fill a report's datasource without directly using a table?