How can i remove tabs from crystal Report Viewer in WPF ?

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VB

WPF

<Hi guys

I have a WPF application with crystal reports.
In the report viewer I use this code to hide Tabs

Private Sub HideTabs()
        Dim crvObject As Object
        For Each crvObject In Me.Report1.Controls '<-- Here is the problem in Controls
            If crvObject.GetType Is GetType(PageView) Then
                myPageView = CType(crvObject, PageView)
                Dim crvObjectControl As Object
                For Each crvObjectControl In crvObject.controls
                    If crvObjectControl.GetType Is GetType(TabControl) Then
                        tbcReportTab = crvObjectControl
                    End If
                Next
            End If
        Next
        With tbcReportTab
            .ItemSize = New Size(0, 1)
            .SizeMode = TabSizeMode.Fixed
            .Dock = DockStyle.None
            .Left -= 4
            .Top -= 5
            .Width = .Parent.Width + 8
            .Height = .Parent.Height + 9
            .Anchor = AnchorStyles.Left Or AnchorStyles.Top Or AnchorStyles.Right Or AnchorStyles.Bottom
            .Appearance = TabAppearance.Buttons
        End With
        With tbcReportTab.TabPages(0)
            .BackColor = Color.FromArgb(255, 148, 154, 173)
        End With
    End Sub

I have used this code in a windows form application
and it works fine but in WPF there is a problem.

Can anyone help ?