Hi Mark and Muhariz.
Have you considered using the LinkSubmit selected and tab parameters?
<component id="deleteLink" type="LinkSubmit">
<binding name="selected" expression="submitTarget"/>
<binding name="tag" expression="@[EMAIL PROTECTED]"/>
</component>
I'm using a string because I like to do naughty things: adding extra
'parameters' to the string and parsing it later. But the certified Tapestry Way
would be to use an array type or some other object that suits you if you have
more than one 'parameter' to pass.
Tag gets assigned to selected before the component or form listener is called.
Then you can grab your 'parameters' from selected.
Does this do what you need?
Cheers,
Nick.
Mark Stang wrote:
Hi,
I have the same problem.
The issue is that DirectLink allows you to create the link in the HTML page
with parameters. When you click on that link, the page is NOT submitted,
rather control is transferred to whereever the link is pointing to and it only
passes the parameters in the link. Those parameters were created when the HTML
was generated by Tapestry. Therefore any changes you have made to the data on
the screen can NOT be in those links.
With LinkSubmit it is very similar. A LinkSubmit causes the whole form to be submitted
with all of your changes packaged up and sent to Tapestry to post into your variables.
However, the fact that you clicked on a Link and the parameters from that link are NOT
sent along which is why you get "0". What you need is something called a
Parameterized Link Submit. The current LinkSubmit does NOT allow you to specify a
Parameter.
Link Submit Definition of available Parameters: (see
http://jakarta.apache.org/tapestry/3.0.3/doc/ComponentReference/LinkSubmit.html)
Parameters
Name Type Direction Required Default Description
disabled boolean in no false Controls whether the
link is produced. If disabled, the portion of the template the link surrounds
is still rendered, but not the link itself.
selected Object out no This parameter is bound to a
property that is updated when the submit button is clicked by the user. The
property is updated to match the tag parameter.
tag Object in no Tag used with the selected parameter to
indicate which Submit button on a form was clicked.
listener IActionListener in no If specified, the listener is notified. This notification occurs as the component is rewinded, i.e., prior to the Form's listener. In addition, the selected property (if bound) will be updated before the listener is notified.
So, there is NO way to specify which link was clicked.
Glen posted a modified LinkSubmit that allows you to pass in parameters. I haven't had any luck getting it to work properly. Here is the link
http://www.jroller.com/page/gstamp/20050514
Good Luck and if you it working let me know ;-). I think part of my issue with
it is that I have conditional elements on my page and it is causing me grief.
regards,
Mark
-----Original Message-----
From: Muhariz Jabeer [mailto:[EMAIL PROTECTED]
Sent: Wed 8/17/2005 12:46 PM
To: Tapestry users
Subject: LinkSubmit not passing in arguments
hi guys,
I have this problem where i have to use LinkSubmit instead of DirectLinks to
keep persistence within a set of tabs in an application.
The problem i am having is, if i use DirectLink, the parameters arguement
can be used to pass information. However, LinkSubmit doesnt
allow me to pass parameters to the server. Everytime i try to get the
serviceParameters( ) from the listener, i get a "0"?
Any ideas how i can make LinkSubmit work for me? Basically i need to pass a
String from my Tab Component to the server, I'm using DirectLink
now, but i really need it to be a submission to the server when u click any
of the links.
Thanks a lot,
any help would be much appreciated.
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