Local Report Parameter Loading Problem

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VB

WinForms

Parameter

i want to pass some paramaters to a localreport in my project but i get the "The source of the report definition has not been specified" error message.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       Dim ds As New ReportDataSource("ds_rapordata")
       Dim rps(0) As ReportParameter

       frm_rapor_goster.ReportViewer1.Reset()
       ds.Value = dt_grid.DataSource
       frm_rapor_goster.ReportViewer1.LocalReport.DataSources.Clear()
       frm_rapor_goster.ReportViewer1.LocalReport.DataSources.Add(ds)
       rps.SetValue(New ReportParameter("rp_baslik", "Başlık"), 0)
       frm_rapor_goster.ReportViewer1.LocalReport.SetParameters(rps)


       frm_rapor_goster.ReportViewer1.LocalReport.ReportEmbeddedResource = "WF_PROJECT.rpr_ucuslar_milli.rdlc"
       frm_rapor_goster.MdiParent = Me.MdiParent
       frm_rapor_goster.Show()
   End Sub

Thanx for your help from now.