How can a custom control set the value of a control on the parent page?

[Alan Silver]

Hello,

If I have a page that contains (say) a Literal control and a custom
control, can the code in the custom control set the value of the
Literal?

I tried doing this in the custom control...

Literal litPageNo = (Literal)this.Parent.FindControl("litPageNo");

to get a reference to the Literal, but this came back null. I tried
removing the Parent, but that did the same.

How can this be done? TIA

 

[Brock Allen]

You're breaking the notion of encapsulation by taking this approach. I'd
suggest having your control raise an event, the page then handles the event
and then does the update on its own control.

 

[Damien]

You're breaking the notion of encapsulation by taking this approach. I'd
suggest having your control raise an event, the page then handles the event
and then does the update on its own control.

Or if the custom control *always* needs a literal control, add a
property to it. That way you've got the reference that you need.

 

[Alan Silver]

You're breaking the notion of encapsulation by taking this approach. I'd
I realised this last night. I was still thinking in the Classic ASP way,
not the ASP.NET way. I still hadn't worked out the best way to pass the
info back, but...

Or if the custom control *always* needs a literal control, add a
property to it. That way you've got the reference that you need.

Well, the control generates some information that the parent page is
likely (but not forced) to use. A property is an ideal answer to that as
it allows the parent page to get the info without forcing it back, and
without insisting on it having the literal or capturing an event.

Thanks to both of you.