Trouble using parameterfields with Crystal reports.net

[Luther1978]

Other Threads suggest using the ParameterFields (i.e. Thread 796-811936)

But I can't seem to simply create a parameterfields using Dim ParameterFields As ParameterFields

Am I missing something fundamently basic?

my code:

Sub Open_CrystalViewer_STD(ByVal ReportName As String, ByVal StartPeriod As Date, ByVal EndPeriod As Date)
MsgBox(CDate(StartPeriod) & " To " & CDate(EndPeriod))
Dim paramField As ParameterFields
Dim ViewRpt As New FRM_ViewReport

ViewRpt.CrystalReportViewer().ReportSource = ReportName
ViewRpt.Show()
End Sub

underlines the ParameterFields in blue to suggest it doesn't understand.

Do I have to import the CrystalDecisions.Shared module somehow its listed in the references in the solution.


Thanks in advance