VB.NET error : specified cast is not valid

[Omavlana]

Hi, I am getting the above error "specified cast is not valid" while
sending the parameter to crystal report through VB.NET.

Here is my code..

'***********

Dim paramFields As New ParameterFields
Dim paramField As New ParameterField
Dim discreteVal As New ParameterDiscre teValue


paramField.Para meterFieldName = "Batch Number"

' Set the first discrete value and pass it to the parameter
discreteVal.Val ue = "123"

paramField.Curr entValues.Add(d iscreteVal)

paramFields.Add (paramField)

' Set the parameter fields collection into the viewer control.
CrystalReportVi ewer1.Parameter FieldInfo = paramFields


CrystalReportVi ewer1.ReportSou rce = "C:\TEMP\RpOute rJoin.rpt"

'***********

When tested in debug mode,

"paramField.Par ameterFieldName " didn't get value "Batch Number"

It has shown,
<error: an exception of type: {System.Argumen tException} occured>



Pls help...

Regards,
Omav