Hi I need help with understanding DataView.
My code that construct the dataview is as follows (name changed to
protect the guilty),
IDataProvider<MyRecord> dataProvider = new MyRecordDataProvider();
DataView<MyRecord> dataView = new DataView<MyRecord>("summary",
dataProvider)
{
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
@Override
protected void populateItem(Item<MyRecord> item)
{
MyRecord record = item.getModelObject();
}
};
add(dataView);
In my hmtl I just bascially put:
<table cellspacing="0" id="dsta-grid">
<thead>
<tr>
</tr>
</thead>
<tbody>
<tr wicket:id="summary">
</tr>
</tbody>
</table>
I reduced the fields printed because I got the following error regarding
markup
WicketMessage: The component(s) below failed to render. A common problem
is that you have added a component in code but forgot to reference it in
the markup (thus the component will never be rendered).
1. [MarkupContainer [Component id = summary]] 2. [MarkupContainer
[Component id = 1]] 3. [MarkupContainer [Component id = 2]] 4.
[MarkupContainer [Component id = 3]] 5. [MarkupContainer [Component id =
4]] 6. [MarkupContainer [Component id = 5]] 7. [MarkupContainer
[Component id = 6]] 8. [MarkupContainer [Component id = 7]] 9.
[MarkupContainer [Component id = 8]] 10. [MarkupContainer [Component id
= 9]]
This is really weird. It seems that Wicket is looking to render the tag
id 1..9 (corresponds to the number of records in my list, whose iterator
I returned.) Is my syntax wrong? Or does the problem lies with my data
provider which implements the following
public Iterator<? extends MyRecord> iterator(int arg0, int arg1) {
Session dbSession = HibernateUtil.GetSessionFactory().openSession(); try
{ List<MyRecord> list = dbSession.createCriteria(MyRecord.class).list();
return list.iterator(); } finally { dbSession.close(); } } @Override
public IModel<MyRecord> model(MyRecord inmodel) { return new
Model<MyRecord>(inmodel); } Lester
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