Pagination sample, somebody can help me??

[Dr-Delta]

Hi
I've been doing a Pagination Sample, and when to run it in the browser I get the following
http://localhost/example/?=2 or http://localhost/example/?=9

This is the code I'm doing

 Protected Function DisplayPaging(ByVal index As Integer) As String
        If (PagedData.CurrentPageIndex + 1) = index Then
            PagingCont += "<b> " + index.ToString() + " </b>"
        Else
                PagingCont += " <a href=""" + Request.CurrentExecutionFilePath + "?=" & index.ToString() & """>" + index.ToString() + "</a> "
        End If
        Return PagingCont
    End Function

 Protected Sub btFirst_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
        Response.Redirect(Request.CurrentExecutionFilePath & "?=1")
    End Sub

    Protected Sub btPrevious_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
        Response.Redirect(Request.CurrentExecutionFilePath & "?=" & (PagedData.CurrentPageIndex))
    End Sub
    
    Protected Sub btNext_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
        Response.Redirect(Request.CurrentExecutionFilePath & "?=" & (PagedData.CurrentPageIndex + 2))
    End Sub

    Protected Sub btLast_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
        Response.Redirect(Request.CurrentExecutionFilePath & "?=" & (PagedData.PageCount))
    End Sub

my question is, how I can make it for me then appears in the browser
http://localhost/example/2 or http://localhost/example/9

???