"Dave E" <dave@a.b.c> ha scritto nel messaggio
news:44a7d387$0$17549$61c65585@un-2park-reader-01.sydney.pipenetworks.com.au...
> Hi all,
>
> right now I feel pretty dumb - even dumber than I look.  I have read
> endless web articles on this, including the excellent site by Steve Orr
> (http://steveorr.net/faq/PassDataToUserControl.aspx) on this very issue,
> sadly to no avail in my case.
>
> I've followed the examples and can only get the glorious "Object reference
> not set to an instance of an object" error when I attempt to set the
> public property on the control.  Intellisense picks up the [IsCheckout]
> property on the control and so at least that part is OK.  I tried calling
> a public sub on the control from a button press on the parent page but
> same error.
>
> Essentially I just want to pass a simple boolean to the control to give it
> context but this one has cost me much sleep - must be a *very* simple
> answer I'm guessing.
>
> My code is as follows (please don't laugh...):
>
> [------- My control  (i_cart_list1) --]
>
>    Private blnIsCheckout As Boolean
>
>    Public Property IsCheckout() As Boolean
>        Get
>            Return blnIsCheckout
>        End Get
>
>        Set(ByVal Value As Boolean)
>            blnIsCheckout = Value
>        End Set
>    End Property
>
>
> [------- Parent page --]
>
>    Protected WithEvents Checkout As i_cart_list1
>
>    Private Sub Page_Load(blah blah here...)
>        Checkout.IsCheckout = True        '<== Error happens here
>    End Sub
>
> -----------------------------
>
> Many thanks in advance for any help on this nasty.
>
> Cheers,
> David E (Sydney)
>

"Dave E" <dave@a.b.c> ha scritto nel messaggio
news:44a86745$0$17541$61c65585@un-2park-reader-01.sydney.pipenetworks.com.au...
> "Alessandro Zifiglio" <AlessandroZifiglio @ -h-o-t-m-a-i-l-c-o-m> wrote in
> message news:%23hYe7NenGHA.4352@TK2MSFTNGP02.phx.gbl...
>> Dave, in your .aspx page that contains your user control, make sure that
>> the id of the user control is the same id you used in the codebehind for
>> that page. From your example it seems as though the id is Checkout. Are
>> you sure, can you verify this ? I think this is the problem as to why
>> your control is returning an object reference error.
>>
>> Regards,
>> Alessandro Zifiglio
>
> Hi Alessandro,
>
> well, my sincere thanks to you - you've saved me from tearing the final
> few strands of hair out!  I was right on one point though... it was a
> ridiculously easy solution, but clearly way beyond me!
>
> Many thanks and I appreciate your time.
>
> Cheers from Sydney,
> Dave E
>