I'm not well versed in grid/gridcell... but one thing that jumps out is that you have "_model=_model" in your parameters. Shouldn't that be "model=_model" ? Also, are you passing the model parameter in your template? Your Parameter isn't required so null may be the correct value.
I also haven't done inheritance like you are doing, but it looks like you are redefining the _model attribute from the superclass? Should you maybe be using datamodel provided by the superclass instead? "model=datamodel"? http://tapestry.apache.org/tapestry5/tapestry-core/apidocs/org/apache/tapestry/corelib/components/Grid.html I haven't written the code, but that seems to be what makes sense to me... Josh On 9/27/07, Britske <[EMAIL PROTECTED]> wrote: > > > Hi all, > > I guess I'm missing something here, maybe a trival thing so bear with me > please.;-) > > I'm trying to extend the T5 grid / griddatasource for my requirements. For > some event-handling in GridColumn I need to reference the field _model of > type BeanModel which exists in the Grid-class from GridColumn. So I both > extended Grid --> LazyConfigurableGrid and GridColumns --> > LazyGridColumns. > > next,I supplied field _model as a parameter from the gridclass to the > gridcolum-class. > > My problem: > _model==null in GridColumn all the time. I guess this is some > binding-thing > that I can't quite get my head around. (_model == null on initialization > of > the component, but i thought it would be updated later on) > > The general question: how to pass objects by reference as parameters, > since > they always seem to be null. > > the relevant bits: > > LazyConfigurableGrid: > ------------ > @Parameter > private BeanModel _model; > > @SuppressWarnings("unused") > @Component(parameters = > { "sortColumnId=sortColumnId", "sortAscending=sortAscending", > "source=_source", "_model=_model" }) > private LazyGridColumns _columns; > > > LazyGridColumns: > ------------ > @Parameter > private BeanModel _model; > > Thanks in advance, > Geert-Jan > > > -- > View this message in context: > http://www.nabble.com/-T5-%3A-binding-issue%3A--supplying-parameter-to-component---%3E-always-null-tf4530634.html#a12928987 > Sent from the Tapestry - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- -- TheDailyTube.com. Sign up and get the best new videos on the internet delivered fresh to your inbox.
