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Posted to users@tapestry.apache.org by "Zheng, Xiahong" <Xi...@FMR.COM> on 2008/01/10 20:05:51 UTC

T4: Newbie's questions

Hi, 

I am exploring Tapestry (currently looking at 4.1.4 snapshot). So far,
the experience has been very positive. I was able to convert a Struts
based application to Tapestry4 in just a couple days. However, I still
need answer to the following questions,

1) Layout management: I couldn't find a documented solution to replace
tiles used by the old application.

2) Dynamic attribute value generation: Something like the following you
can do with JSP

		<input type="submit" value="${button. value}"/>

   How do I achieve this in Tapestry? Is there a component I can use to
generate dynamic content as value for any arbitrary attribute of an HTML
element?


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Re: T4: Newbie's questions

Posted by Norman Franke <no...@myasd.com>.

Which doesn't work if you want to include a single quote in the  
string, as he seems to want. You can get around this by defining the  
component in the .page file and specifying that property like this:

       <component id="attributesDisplay" type="Insert">

             <binding name="value"  
value="components.table.columnValue" />

             <binding name="renderTag" value="literal:true" />

             <binding name="width" value="literal:100%" />

             <binding name="onmouseover">

                   "return escape(hintAttributesTxt(1,this,'"+attrList 
+"'))"

             </binding>

       </component>



Norman Franke

ASD, Inc.

On Jan 10, 2008, at 4:19 PM, Jesse Kuhnert wrote:

> <input jwcid="@Any" stringValue="ognl:'myStringValue' +  
> page.user.name" />
>
> On Jan 10, 2008 3:52 PM, Zheng, Xiahong <Xi...@fmr.com> wrote:
>> I will try to read OGNL. For now, I did just as you suggested;  
>> created a
>> page method to return the entire string. The down side is: I have
>> JavaScript in my Page class which is vulnerable to UI changes (form
>> element id changes, i.e.).
>>
>> -----Original Message-----
>> From: Norman Franke [mailto:norman@myasd.com]
>> Sent: Thursday, January 10, 2008 3:38 PM
>> To: Tapestry users
>> Subject: Re: T4: Newbie's questions
>>
>>
>> On Jan 10, 2008, at 3:04 PM, Zheng, Xiahong wrote:
>>
>>> Thanks Norman and Ulrich for your quick response. Now I am getting
>>> closer. In my scenario, I want to append a dynamic content to the
>>> "onclick" attribute, not to replace it entirely. See below,
>>>
>>> <input jwcid="@Any"
>>> onclick="document.getElementById('positionId').value="
>>> type="submit" />
>>>
>>> How can I append OGNL expression to the "onclick" attribute?
>>
>> You can have a page method return the entire string, or read up on
>> OGNL. It can do string concatenation.
>>
>> -Norman
>>
>>
>>
>>
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>>
>>
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>>
>
>
>
> -- 
> Jesse Kuhnert
> Tapestry / OGNL / Dojo team member/developer
>
> Open source based consulting work centered around
> dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com
>
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