สอบถามการ Response.Redirect ไปยัง Master Page Asp.net

    ''' <summary>
    ''' Change Master Page at runtime.
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub Page_PreInit(sender As Object, e As System.EventArgs) Handles Me.PreInit
        Dim x = ConfigurationManager.AppSettings("CurentProduct")
        If (x IsNot Nothing) AndAlso (Not x.Equals(String.Empty)) Then
            'Query (Select * From sysMasterPage Where IsDefault = 1)
            Select Case x
                Case "น้องอั้ม"
                    Me.Page.MasterPageFile = "~/อวบอึ๋ม.Master"
                    Response.Redirect("~/AOM/Default.aspx")
                Case "ทวดต่าย"
                    Me.Page.MasterPageFile = "~/ยายเพิ้ง.Master"
                    Response.Redirect("~/PUNG/Default.aspx")
                Case Else
                    'My ERP Solution
            End Select
        End If
    End Sub