problem in selecting e.node.text in treeview

[qader]

hi

i have problem in treeview. i create a program in asp.net and use treeview in master page. i have checkes as follows

Protected Sub TreeView1_TreeNodeDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.TreeNodeEventArgs) Handles TreeView1.TreeNodeDataBound
        If Strings.InStr(e.Node.NavigateUrl.ToString, "?") > 0 Then
            e.Node.Target = "_blank"
        End If

        Select Case e.Node.Text
            Case "Daily Transaction Report"
                Session("ReportOption") = "TransactionList"
                Session("FrmDate") = FormatDateTime(Today, DateFormat.ShortDate)
                Session("ToDate") = FormatDateTime(Today, DateFormat.ShortDate)
                Response.Write("<script type='text/javascript'>detailedresults=window.open('frm_ReportView1.aspx',null, 'height=650,width=900,status=yes,toolbar=no,menubar=no,location=no');</script>")
            Case "Transaction List"
                Session("ReportText") = "Transaction List"
            Case "Daily Purchase Journal?"
                Session("FrmDate") = FormatDateTime(Today, DateFormat.ShortDate)
                Session("ToDate") = FormatDateTime(Today, DateFormat.ShortDate)
            Case "Daily Income/Expense Report"
                Session("ToDate") = FormatDateTime(Today, DateFormat.ShortDate)
            Case "Account Average and Revaluation"
                Session("ReportText") = "Account Average and Revaluation"
        End Select
    End Sub

this code was working fine but now it is not working. last node value text is shows in e.node.text is any idea for this.