Which ASP.NET Controls Have Child Controls?

[poi]

In VS.NET 2003, I get intellisense if I do this:

LiteralControl literalControl = new LiteralControl();
literalControl.ID = "something";

literalControl.Controls.Add.....

And it compiles fine but I get an error saying that the LiteralControl
does not allow child controls.

So which controls *do* allow children, since VS.NET is not helping me?

Thanks.

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[Marina]

The problem is, LiteralControl inherits from a class that has a Controls
property - so LiteralControl inherits it as well.

Container controls such as a Panel, PlaceHolder, and others have a Controls
collection you an manipulate.

Controls such as TextBox, Button, etc don't - and this just makes sense. A
button cannot have any controls within it - it is a button!

You just have to think about whether or not it really makes sense for a
control to have child controls.

"poi" <ddvsv12@rucs.nul> wrote in message
news:%233F5wlEWDHA.2164@TK2MSFTNGP09.phx.gbl...

>
>
> In VS.NET 2003, I get intellisense if I do this:
>
> LiteralControl literalControl = new LiteralControl();
> literalControl.ID = "something";
>
> literalControl.Controls.Add.....
>
> And it compiles fine but I get an error saying that the LiteralControl
> does not allow child controls.
>
> So which controls *do* allow children, since VS.NET is not helping me?
>
> Thanks.
>
> *** Sent via Developersdex [url]http://www.developersdex.com[/url] ***
> Don't just participate in USENET...get rewarded for it!

[Kevin Spencer]

That's a darned good question. I am just guessing here, but I would suspect
that any control which renders a tag can have Controls added to it. The
reason I believe this is that adding a Control to the Controls Collection of
a Server Control appends the child Control HTML in between the starting and
ending tags of the parent Control. A LiteralControl can be plain text,
without any tag at all. I suspect that this is why you can't add Controls to
its' Controls Collection. I would love to hear an authoritative answer to
this question, though.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
[url]http://www.takempis.com[/url]
Complex things are made up of
lots of simple things.

"poi" <ddvsv12@rucs.nul> wrote in message
news:%233F5wlEWDHA.2164@TK2MSFTNGP09.phx.gbl...

>
>
> In VS.NET 2003, I get intellisense if I do this:
>
> LiteralControl literalControl = new LiteralControl();
> literalControl.ID = "something";
>
> literalControl.Controls.Add.....
>
> And it compiles fine but I get an error saying that the LiteralControl
> does not allow child controls.
>
> So which controls *do* allow children, since VS.NET is not helping me?
>
> Thanks.
>
> *** Sent via Developersdex [url]http://www.developersdex.com[/url] ***
> Don't just participate in USENET...get rewarded for it!

[Bill Priess]

And a good case in point... don't always rely on the grossly overrated
Intellisense.. ;)

Bill P.

On Fri, 01 Aug 2003 09:24:52 -0700, poi <ddvsv12@rucs.nul> wrote:

>
>
> In VS.NET 2003, I get intellisense if I do this:
>
> LiteralControl literalControl = new LiteralControl();
> literalControl.ID = "something";
>
> literalControl.Controls.Add.....
>
> And it compiles fine but I get an error saying that the LiteralControl
> does not allow child controls.
>
> So which controls *do* allow children, since VS.NET is not helping me?
>
> Thanks.
>
> *** Sent via Developersdex [url]http://www.developersdex.com[/url] ***
> Don't just participate in USENET...get rewarded for it!
>

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