Is it possible to Select Case by the control

HTML Code:
    Sub ComboBox_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ComboBox1.SelectedIndexChanged, ComboBox2.SelectedIndexChanged
 
        'This works
        If sender Is ComboBox1 Then
        End If

        'This doesn't
        Select Case sender
            Case ComboBox1
        End Select

        'And neither does this
        Dim myComboBox = DirectCast(sender, System.Windows.Forms.ComboBox)
       Select Case myComboBox
            Case ComboBox1
        End Select
    End Sub