vb.net初级有关问题,listview中的列怎么去掉突出显示的那个虚框

vb.net初级问题,listview中的列如何去掉突出显示的那个虚框!

这属性太多了,挨个试也没找到答案,就是想启动程序后,没有那个虚线框,如图示,请高手指点。谢谢先

------解决方案--------------------
继承一个listview,重绘
------解决方案--------------------
http://msdn.microsoft.com/en-us/library/system.windows.forms.listview.drawitem.aspx
VB.NET code

' Draws the backgrounds for entire ListView items.
Private Sub listView1_DrawItem(ByVal sender As Object, _
    ByVal e As DrawListViewItemEventArgs) _
    Handles listView1.DrawItem

    If Not (e.State And ListViewItemStates.Selected) = 0 Then

        ' Draw the background for a selected item.
        e.Graphics.FillRectangle(Brushes.Maroon, e.Bounds)
        e.DrawFocusRectangle()'这一行就是你说的虚线,删掉或注释掉就没有虚线了。

    Else

        ' Draw the background for an unselected item.
        Dim brush As New LinearGradientBrush(e.Bounds, Color.Orange, _
            Color.Maroon, LinearGradientMode.Horizontal)
        Try
            e.Graphics.FillRectangle(brush, e.Bounds)
        Finally
            brush.Dispose()
        End Try

    End If

    ' Draw the item text for views other than the Details view.
    If Not Me.listView1.View = View.Details Then
        e.DrawText()
    End If

End Sub