Hiding all controls contained within a placeholder

[John]

Hi all,

How do I iterate through a specific placeholder and remove or hide all
controls contained within that placeholder?

Regards
John.

[John]

Thanks Karl,

I'll give the loop through a try. The reason I don't want to set the
visibility to false is because I could have one of quite a few user controls
loaded into the placeholder and if I have say, 5 user controls loaded, the
load event will fire in each user control contained within the placeholder
which is unnecessary.

Incidentally, how does a user control differentiate between the first time
it has been loaded into a page and subsequent times?

Regards
John.


"Karl Seguin" <kseguin##crea.ca> wrote in message
news:OQHv0PJQDHA.2676@TK2MSFTNGP10.phx.gbl...

> Why don't you just set the visibility of the placeholder to false?
>
> YourPlaceHolder.Visible = false
>
> If you need to loop through this child controls, try this:
>
> Public Sub HideControls(ByVal ParentCntrl As System.Web.UI.Control)
> Dim ChildCntrl As System.Web.UI.Control
> For each ChildCntrl in ParentCntr.Controls
> ChildCntrl.visible = false
> If ChildCntrl.HasControls = True Then
> HideControls(ChildCntrl)
> End If
> Next
> End Sub
>
> if you actually want to loop through the controls,
> "John" <a@b.com> wrote in message
> news:Obts67HQDHA.1720@TK2MSFTNGP11.phx.gbl...

> > Hi all,
> >
> > How do I iterate through a specific placeholder and remove or hide all
> > controls contained within that placeholder?
> >
> > Regards
> > John.
> >
> >

>
>

[William F. Robertson, Jr.]

Set a viewstate for the control that tells whether is has been posted back
on.

in your user control:

void Page_Load(...)
{
if ( ViewState["IsUCPostback"] == null )
{
ViewState["IsUCPostback"] = true;
//data binding code
}
}

HTH,

bill


"John" <a@b.com> wrote in message
news:uTlumaJQDHA.2052@TK2MSFTNGP11.phx.gbl...

> Thanks Karl,
>
> I'll give the loop through a try. The reason I don't want to set the
> visibility to false is because I could have one of quite a few user

controls

> loaded into the placeholder and if I have say, 5 user controls loaded, the
> load event will fire in each user control contained within the placeholder
> which is unnecessary.
>
> Incidentally, how does a user control differentiate between the first time
> it has been loaded into a page and subsequent times?
>
> Regards
> John.
>
>
> "Karl Seguin" <kseguin##crea.ca> wrote in message
> news:OQHv0PJQDHA.2676@TK2MSFTNGP10.phx.gbl...

> > Why don't you just set the visibility of the placeholder to false?
> >
> > YourPlaceHolder.Visible = false
> >
> > If you need to loop through this child controls, try this:
> >
> > Public Sub HideControls(ByVal ParentCntrl As System.Web.UI.Control)
> > Dim ChildCntrl As System.Web.UI.Control
> > For each ChildCntrl in ParentCntr.Controls
> > ChildCntrl.visible = false
> > If ChildCntrl.HasControls = True Then
> > HideControls(ChildCntrl)
> > End If
> > Next
> > End Sub
> >
> > if you actually want to loop through the controls,
> > "John" <a@b.com> wrote in message
> > news:Obts67HQDHA.1720@TK2MSFTNGP11.phx.gbl...

> > > Hi all,
> > >
> > > How do I iterate through a specific placeholder and remove or hide all
> > > controls contained within that placeholder?
> > >
> > > Regards
> > > John.
> > >
> > >

> >
> >

>
>