Sure, how? Maybe I'm misunderstanding? I can't stick the whole app
in there, however. Maybe I could just send you both of the entire
files (java + html)?
I've found that if I set it to 1 column, it renders w/o an exception.
If I set it to 3 columns, it bombs. When it does render, I see one
row w/ 3 items even though there are 5 items. Weird.
On 5/22/06, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
do you want to stick this into wicket-quickstart and let me take a look? it
is the most efficient way i can find the problem
-Igor
On 5/22/06, VGJ <[EMAIL PROTECTED]> wrote:
>
>
> ok, riddle me this, Batman.
>
> I changed it to just look like:
>
> item.add(new GridView("name", provider)
> {
> };
>
> Whereas before, I was creating the GridView, *then* adding it to the
top-level ListView in two separate steps.
>
> I'm sure my hierarchy before was right because I can simply change what I
show above to
>
> GridView gv = new GridView("name", provider)
> {
> };
>
> item.add(gv);
>
> ...and, I get the hierarchy exception!
>
> I'd be fine w/ the "fix" I came up w/, however, I can't get more than one
row to appear.
>
> I did this:
>
> item.add(new GridView("name", provider)
> {
> }.setRows(3).setColumns(3));
>
> ...however, I only get one row no matter how many items there are. If I
switch back to the old ListView I was using, sure enough, all 5 items show
up in a single row.
>
> any ideas?
>
>
> On Mon, 2006-05-22 at 15:52 -0700, Igor Vaynberg wrote:
>
>
> where is the populateEmptyItem you are supposed to implement for the
gridview? this method populate left over cells and is probably what is
causing the hierarchy mismatch.
>
> also here is how to implement detachable idataprovider:
>
> class mydataprovider implemetns IDataProvider, IDetachable {
> private transient List list;
>
> public void detach() { list=null; }
>
> public iterator iterateor(int first, int last) {
> return getlist().listiterator(first);
> }
>
> public int size() {
> return getlist().size();
> }
>
> private List getlist() {
> if (list==null) {
> list=...load list here
> }
> return list;
> }
> }
>
> -Igor
>
>
>
>
> On 5/22/06, Vincent Jenks < [EMAIL PROTECTED]> wrote:
>
> Yeah, that's what I figured given the example, however that's where my
> problem lies. The items I'm adding in populateItem in the GridView
> can't be found, I'm getting the hierarchy problem exception.
>
> Here's what I'm doing in the page as an overview:
>
> 1. List Product Categories (ListView)
> 2. for each Category, retrieve and display Products (GridView)
> 3. Display 3-column table w/ Product details ("cols" in GridView)
>
> Here's the code:
>
> //add ListView object to page w/ data
> add(new ListView("categoryView", categoryModel)
> {
> protected void
populateItem(ListItem item)
> {
> //get catagory item
> final ProductCategory
category = (ProductCategory)item.getModelObject();
>
> //add category label
> item.add(new
Label("category", category.getName()));
>
> //STILL DON'T UNDERSTAND
HOW TO PASS THIS INTO GRIDVIEW
> IModel productModel = new
LoadableDetachableModel()
> {
> protected Object
load()
> {
> return
ProductProxy.getProducts (category);
> }
> };
>
> IDataProvider provider =
new
> ProductDataProvider(ProductProxy.getProducts(category)); //HARDCODED,
> NOT DETACHED! SEE DETACHED MODEL ABOVE!
> GridView productView =
new GridView("productView", provider)
> {
> protected void
populateItem(Item item)
> {
> //get
product item
> final
Product product = (Product)item.getModelObject();
>
> //create
thumbnail link w/ event
> Link
thumbnailLink = new Link("thumbnailLink")
> {
>
public void onClick()
> {
>
setResponsePage(new ProductDetail(product));
> }
> };
>
> //add
attribute modifier
>
thumbnailLink.add(wmc);
>
> //add
thumbnail link
>
item.add(thumbnailLink);
> .....
>
> You'll notice I've got a detached model in there...right now it's not
> being used since I haven't figured out how to send detached data from
> this page into the IDataProvider derived class (another issue, not to
> get off track, sorry!)
>
> Here's my HTML, I'm sure it's fantastically wrong but I need to see it
> rendered to decide if it looks right:
>
> ...............
>
> <tr
wicket:id="categoryView">
>
<td>
>
<span wicket:id="category"
class="titleSmall">category</span>
>
<hr width="100%" size="1" />
>
<br />
>
<table width="200" align="left"
wicket:id="productView">
>
<tr>
>
<td wicket:id="cols">
>
<table
width="200" align="left">
>
<tr>
>
<td>
>
<a href="#" wicket:id="thumbnailLink">
>
<img src="#" wicket:id="thumnailImg"
width="200"
> height="134" border="0" />
>
</a>
>
</td>
>
</tr>
>
> ................
>
> Here's the exception I'm getting, it's not finding the thumbnailLink
> control above:
>
> WicketMessage: Unable to find component with id 'thumbnailLink' in
> [MarkupContainer [Component id = 4, page =
> com.myapp.ui.ProductCatalog, path =
> 2:categoryView:0:productView:1:cols:4.Item, isVisible =
true,
> isVersioned = true]]. This means that you declared
> wicket:id=thumbnailLink in your markup, but that you either did not
> add the component to your page at all, or that the hierarchy does not
> match.[markup =
> file:/C:/Program%20Files/jboss-
4.0.4.GA/server/default/tmp/deploy/tmp37375MyAppEAR.ear-contents/MyApp-exp.war/WEB-INF/classes/com/myapp/ui/ProductCatalog.html,
> index = 29, current = '<a href="#" wicket:id="thumbnailLink">' (line
> 61, column 15)]
>
> I must just be missing something obvious....I thought I set it up
> correctly per the wicket-examples GridViewPage example.
>
> On 5/22/06, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> > cols objects are generated by the gridview, whatever components you add
to
> > the gridview in populate have to go inside the cols
> >
> > -Igor
> >
> >
> > On 5/22/06, VGJ <[EMAIL PROTECTED]> wrote:
> > >
> > >
> > > The code in examples looks screwy to me too, since it defines
> > wicket:id="rows" for the GridView control and wicket:id="cols" as the
> > columns...yet in the class there is no mention of "cols" anywhere. Is
this
> > some built-in object?
> > >
> > > I'm obviously getting an exception because I've setup "rows" and
"cols"
> > but there is no "cols" - every widget I've nested inside of "cols" is
> > causing my hierarchy to be incorrect.
> > >
> > >
> > > On Mon, 2006-05-22 at 10:02 -0700, Igor Vaynberg wrote:
> > >
> > >
> > >
> > >
> > > On 5/22/06, VGJ < [EMAIL PROTECTED]> wrote:
> > >
> > > Ok, this makes more sense than the example in wicket-examples.
However,
> > what if the List I'm passing in is actually wrapped in a
> > LoadableDetachableModel?
> > >
> > > that should be ok because dataview will check if the idataprovider
impl
> > you passed in also implements IDetachable and call detach on it at the
end
> > of request.
> > >
> > > so class MyDataProvider extends ListDataProvider implements
IDetachable
> > {....}
> > >
> > >
> > >
> > >
> > >
> > > Congrats on the baby, by the way!!
> > >
> > > thank you :)
> > >
> > > -Igor
> > >
> > >
> > >
> >
> >
>
>
> -------------------------------------------------------
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>
>
>
-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid0709&bid&3057&dat1642
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