Persisting child controls

[Alexandre Soares]

Hi,

I've made a collapsible panel custom control. It's pretty simple so far, it
extends the Panel class and renders a bar above itself (panel) to show/hide
the <div> of the panel on the client-side using DHTML. So far it works fine.

I want to be able to make it work server-side as well: only the topbar is
rendered if the panel is to be collapsed and the topbar AND the panel are
rendered if the panel is to be expanded. But when I do that (hide and show
the panel), the properties of the child controls are not persisted.

Any hint on how I might do this?

Thank you,

[Kevin Spencer]

Use ViewState.

In a custom Server Control, this is absurdly easy to do. You create a
Property, something like the following:

public String PersistedProper ty
{
get
{
if (ViewState["PersistedPrope rty"] == null) return "Default Value";
return Convert.ToStrin g(ViewState["PersistedPrope rty"]);
}
set
{
ViewState["PersistedPrope rty"] = value;
}
}

--
HTH,
Kevin Spencer
..Net Developer
Microsoft MVP
Big things are made up
of lots of little things.

"Alexandre Soares" <so*********@ho tmail.com> wrote in message
news:e5******** ******@TK2MSFTN GP09.phx.gbl...

Hi,

I've made a collapsible panel custom control. It's pretty simple so far, it extends the Panel class and renders a bar above itself (panel) to show/hide the <div> of the panel on the client-side using DHTML. So far it works fine.
I want to be able to make it work server-side as well: only the topbar is
rendered if the panel is to be collapsed and the topbar AND the panel are
rendered if the panel is to be expanded. But when I do that (hide and show
the panel), the properties of the child controls are not persisted.

Any hint on how I might do this?

Thank you,