Trying to copy and paste the most basic celltree example:
http://code.google.com/intl/it-IT/webtoolkit/doc/latest/DevGuideUiCellWidgets.html#celltree
But it only shows two blocks, without tree look and feel. Here's my
code:
public class CategorieTreeViewModel implements TreeViewModel {
@Override
public <T> NodeInfo<?> getNodeInfo(T value) {
ListDataProvider<String> dataProvider = new
ListDataProvider<String>();
for (int i = 0; i < 2; i++) {
dataProvider.getList().add(value + "." + String.valueOf(i));
}
// Return a node info that pairs the data with a cell.
return new DefaultNodeInfo<String>(dataProvider, new
TextCell());
}
@Override
public boolean isLeaf(Object value) {
// The maximum length of a value is ten characters.
return value.toString().length() > 10;
}
}
public class Categorie extends Composite implements Constructable {
private static CategorieUiBinder uiBinder =
GWT.create(CategorieUiBinder.class);
interface CategorieUiBinder extends UiBinder<Widget, Categorie> {}
@UiField(provided=true)
CellTree cellTree;
public Categorie() {
// Create a model for the tree.
TreeViewModel model = new CategorieTreeViewModel();
// Create the tree using the model. We specify the default value
of the
// hidden root node as "Item 1".
cellTree = new CellTree(model, "Elemento 1");
initWidget(uiBinder.createAndBindUi(this));
}
}
Is there something wrong? What do you think?
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