Maybe you've got a different Model class. The add() method with a null conduit
works fine.
That said, I didn't realize you were inside a form. Howard as mentioned that
this is an area that needs work.
CarstenM <[EMAIL PROTECTED]> wrote:
Hi,
the line
model.add("action", null );
caused the NullPointer.
I am not sure if your suggestion is what I ma looking for.
I am looking for a grid inside a form. A grid row (GridRow component?)
should contain
a textfield and a checkbox for example.
Cheers.
Vashon-Ez wrote:
>
> Maybe you could show more of your .tml (and .java) file(s). I'm new to
> Tap5 and all I've discovered so far in the realm of models is how to
> supply a one to a BeanEditor and to a Grid. I've never gone to the level
> of t:gridcell and from what I've learned one generally does not need to --
> you can configure a lot at the t:grid level and via nested t:parameter
> elements.
>
> Ezra
>
> CarstenM wrote:
> Hi,
>
> ok, I tried this but I get a NullPointerException (line 4 of .tml).
>
> 1
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
> 2
> volatile="inherit:volatile">
> 3
> 4
> overrides="componentResources.containerResources"/>
> 5
> 6
> 7
>
> #
> org.apache.tapestry.corelib.base.AbstractPropertyOutput.readPropertyForObject(AbstractPropertyOutput.java:134)
> #
> org.apache.tapestry.corelib.base.AbstractPropertyOutput.renderPropertyValue(AbstractPropertyOutput.java:117)
> #
> org.apache.tapestry.corelib.components.GridCell.beginRender(GridCell.java:28)
> #
> org.apache.tapestry.corelib.components.GridCell.beginRender(GridCell.java)
>
> Do I forget something?
>
> Thanks.
>
>
> Vashon-Ez wrote:
>>
>> It's a two step process.
>>
>> 1. Define a model in your Java class. It's easy to just use the
>> standard
>> definition and extend it like so:
>>
>> @Inject
>> private BeanModelSource _beanModelSource;
>>
>> @Inject
>> private ComponentResources _resources;
>>
>> @Retain
>> private BeanModel _model;
>>
>> void pageLoaded() {
>> _model = _beanModelSource.create(VideoClip.class, true,
>> _resources);
>>
>> _model.remove("id");
>>
>> _model.add("action", null);
>> }
>>
>> public BeanModel getModel() {
>> return _model;
>> }
>>
>> Note the _model.add("action", null); that sets a null conduit meaning
>> the
>> grid will not try to pull values for that column from the underlying
>> bean.
>> In other words, its a utility column where you can put whatever you like.
>> Note the name of the model is just model as its accessed via the
>> getModel() method.
>>
>> 2. Add a model="name-of-your-model-in-your-Java-class" to your grid in
>> your .tml file. In this case it is model="model" e.g.:
>>
>>
>> rowsPerPage="5" pagerPosition="both">
>>
>>
>> context="video.id">${video.title}
>>
>>
>>
>> context="video.id">Edit
>>
>>
>>
>> I've added a bunch of other stuff, but you should get the idea.
>>
>> HTH
>>
>> CarstenM wrote:
>> Hi again,
>>
>> no example for this or what's wrong?
>>
>> Cheers
>> Carsten
>>
>>
>>
>> CarstenM wrote:
>>>
>>> Hello,
>>>
>>> still trying to use the GridRows component.
>>> Can someone give an example for a GridModelProvider or the GridRows
>>> component?
>>> Well, the Grid is an implementation of GridModelProvider but I would
>>> like
>>> to
>>> customize my rows.
>>>
>>> Thanks,
>>> Carsten
>>>
>>>
>>> (Thread relates to T5.0.6 - How to use GridRows)
>>>
>>>
>>
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>>
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>>
>
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