Cannot load Report using Report viewer in Visual studio 2008

Hii

I am using VS 2008 and SQL 2008,.I am trying to build a report using Report viewer using Parameters.I am completly new to this concept,so i was trying to develop using the basic steps as shown in various tutrials.

1> connect to dataset

2- Configure server

3 - table Adapter

4 - Add new report

5 - Drag a table in the Report screen and add the columns

6 * Here i am adding parameters ( fromdate,todate).Please tell me what mistake i am doing

I got to Reports -> ReportParamaters -> Add new Parameter - > fromdate -> type : Datetime. (Same for Todate)

7 - > In the web page. Added 2 textboxes and a button

8 - > Dragged Reportviewer - > choose Datasoure and Report name

Now the code Behind.

On button click

Protected Sub btnView_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnView.Click
Try
setReportParameters()
Me.ReportViewer1.LocalReport.Refresh()
Catch ex As Exception

End Try
End Sub

Private Sub setReportParameters()
Dim Fromdate As New ReportParameter("Fromdate", tbFromDate.Text)
Dim Todate As New ReportParameter("Todate", tbtodate.Text)

Me.ReportViewer1.LocalReport.SetParameters(New ReportParameter() {Fromdate, Todate})

End Sub

When i Run the Report I get this Following Error

"

An error occurred during local report processing.
Error during processing of ‘FromDate’ report parameter.

All i can see is the textboxes and Button.When i click on it,nothing happens...

Pleaseeeeeeeeeeeeee help..

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