+Simplest+ way to attributes to all of a particular Web Form control type?

[Guest]

For a given web form, I want to know what the +simplest+ way to add an
attribute to all of a particular control type on that page. For example, I
might want to add an onClick attribute to all TextBoxes on the page, e.g.

[TextBoxName].Attributes.Add("onKeyUp", "dosomething(event);");

I know that I can create a custom user control or custom control or
otherwise extend stuff with some work. I'm wondering if there's a quicker
and dirtier way to do this on a per-page basis.

Thanks.

-KF

 

[Peter Rilling]

Well, you mentioned that you could extend a particular type. In that you
could write the attribute out, so instead of using TextBox, you might use
your custom control MyTextBox that inherits from TextBox.

You could also in the PreRender event, for instance, cycle through all the
controls on the page using what is in the Controls collection. Then you can
check their type and output the attributes accordingly.

 

[Steven Cheng[MSFT]]

Thanks for Peter's inputs.

Hi Kenfine,

As for your scenario, I think using a custom Control will be a prefered
approach since dynamically loop through the Page's Controls collection and
sub control's collection recursively will be very expensive. Also, if you
just loop through the top level control(which underneath the HtmlForm ) ,
that's OK. If some of those controls are nested in other controls or in
very deep hierarchy, I think use Custom Control to centralize the operation
will be more reasonable. Thanks,

Steven Cheng
Microsoft Online Support

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--------------------
| From: "Peter Rilling" <[email protected]>
| References: <[email protected]>
| Subject: Re: +Simplest+ way to attributes to all of a particular Web Form
control type?
| Date: Thu, 15 Sep 2005 16:40:40 -0700
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| X-Tomcat-NG: microsoft.public.dotnet.framework.aspnet
|
| Well, you mentioned that you could extend a particular type. In that you
| could write the attribute out, so instead of using TextBox, you might use
| your custom control MyTextBox that inherits from TextBox.
|
| You could also in the PreRender event, for instance, cycle through all
the
| controls on the page using what is in the Controls collection. Then you
can
| check their type and output the attributes accordingly.
|
|
| | > For a given web form, I want to know what the +simplest+ way to add an
| > attribute to all of a particular control type on that page. For
example, I
| > might want to add an onClick attribute to all TextBoxes on the page,
e.g.
| >
| > [TextBoxName].Attributes.Add("onKeyUp", "dosomething(event);");
| >
| > I know that I can create a custom user control or custom control or
| > otherwise extend stuff with some work. I'm wondering if there's a
quicker
| > and dirtier way to do this on a per-page basis.
| >
| > Thanks.
| >
| > -KF
| >
|
|
|