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David C - 30 Oct 2007 20:49 GMT

I have an aspx page that contains an iframe where I point to another aspx
page. In the aspx page that is in the iframe, I have VB code as follows:

<script language="vb" runat="server">

Dim strFolder As String = Request.QueryString("fldr").ToString

Dim PathVar As String = Server.MapPath("/wafgo/Pictures") & "\" & strFolder
& "\"

</script>

The Request.Querystring line is failing with the error Request is not
available in this context

I'm trying to pass the page a folder path and I don't know how else to do
it. I'm open to ideas. Thanks.

David

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Teemu Keiski - 30 Oct 2007 20:59 GMT

Hi,

the code should be in any event of the Page. Like Init, Load or something.
Otherwise it gets executed "too early" during page lifecycle when certain
thuings aren't associated with the page, yet

Try

Protected Sub Page_Load(sender As Object, e As EventArgs) Handles
MyBase.Load

Dim strFolder As String = Request.QueryString("fldr").ToString
....
End Sub

Signature

Teemu Keiski
AspInsider, ASP.NET MVP
http://blogs.aspadvice.com/joteke
http://teemukeiski.net

>I have an aspx page that contains an iframe where I point to another aspx
>page. In the aspx page that is in the iframe, I have VB code as follows:
[quoted text clipped - 15 lines]
>
> David

Reply to this Message

David C - 30 Oct 2007 21:07 GMT

Should I have it in the called page or in the page referred to in the
iframe? Thanks.

David

> Hi,
>
[quoted text clipped - 30 lines]
>>
>> David

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George Ter-Saakov - 30 Oct 2007 22:32 GMT

This code
Dim strFolder As String = Request.QueryString("fldr").ToString
is executed during construction phase.

ASP.NET page did not get a chance to assign Request to the page.

George.

>I have an aspx page that contains an iframe where I point to another aspx
>page. In the aspx page that is in the iframe, I have VB code as follows:
[quoted text clipped - 15 lines]
>
> David

Reply to this Message

bruce barker - 30 Oct 2007 22:37 GMT

request is a Page property, which can not be accessed by a class field
initialization expression, because the constructor has not been called.

    class foo
        dim strFolder as string = myProperty
        ...

try:

Dim strFolder As String =
HttpContext.Current.Request.QueryString("fldr").ToString

-- bruce (sqlwork.com)

> I have an aspx page that contains an iframe where I point to another aspx
> page. In the aspx page that is in the iframe, I have VB code as follows:
[quoted text clipped - 15 lines]
>
> David

Reply to this Message

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