On 7/13/07, William Hoover <[EMAIL PROTECTED]> wrote:
As you guessed it, there are links within each table row that contain a f:param
that holds data for that row. When the user clicks on that row I need to update
a separate input field (outside the table- inside the same form) with the value
from the f:param. I need this to happen on the client side before the page
submits.
That, I don't get. Is the intent to track selection in some way?
Couldn't you just stick a tr:inputHidden in the row and grab that
value on the client, copying it into that separate input field? Or,
for example, running some post-processing in JS (search for fields in
the table that match a pattern). Etc., there's gotta be a better way
of handling this.
Alternatively, you could write a simple component of your own that
doesn't render anything, but gets inserted into the table; you
implement its encodeBegin() to
do your stuff.
-- Adam
I know that I can make this happen using EL in the link's onclick attribute based upon
the current row data and the separate input field id (i.e. onclick="javascript:
setInputValue('separateInputFieldId',#{row.someValue}';"), but I have a table view
that gets reused quite a bit that may or may not need this feature based upon individual
needs. Also, I'm not sure that it's a good idea to capture the client id for the separate
input field in this manner due to the client id dependency on naming containers. That's
why I'm looking for a programmatic solution that will add the needed javascript call on
an as needed basis before the link/param are rendered outside the jsf page.
-----Original Message-----
From: Adam Winer [mailto:[EMAIL PROTECTED]
Sent: Friday, July 13, 2007 3:24 PM
To: MyFaces Discussion
Subject: Re: [Trinidad] Renderer Listeners
Well, that's what you're doing, but doesn't quite explain
(A) why the value is null until the link is rendered (though
I'm guessing that's because its value comes from the
table data)
(B) why you need to get the param value for this specific
command link within this table (or a specific row
of the table?)
-- Adam
On 7/13/07, William Hoover <[EMAIL PROTECTED]> wrote:
> I am trying to get a f:param value from a CoreCommandLink, but the value is
null until the link has been rendered.
>
> The link is inside a tr:column- if that helps.
>
> -----Original Message-----
> From: Adam Winer [mailto:[EMAIL PROTECTED]
> Sent: Friday, July 13, 2007 2:42 PM
> To: MyFaces Discussion
> Subject: Re: [Trinidad] Renderer Listeners
>
>
> There's no event listener, but there is that ResponseWriter
> API, which will get passed components on startElement().
> 99% works (necessarily, because PPR relies on that!).
> What functionality are you trying to get here?
>
> -- Adam
>
>
> On 7/13/07, William Hoover <[EMAIL PROTECTED]> wrote:
> > I don't suppose there are any event listeners that can detect when
components are being rendered? It would be nice if there was a way to be able to...
> >
> > component.addRendererListener(new RendererListener() {
> > public void processRenderBegin(RenderEvent event) {
> > ...
> > }
> > public void processRenderEnd(RenderEvent event) {
> > ...
> > }
> > });
> >
> >
>
>
