If you want to do this outside the Datagrid you can use
DataGrid.addCellPreviewHandler(). The event contains all the information
you need.
And it is SelectionModel<? super T> because its less restrictive. For
example you can have a DataGrid<Integer> that holds a more generic
SelectionModel<Number>. Using generics that are least restrictive while
ensuring type safety is a good practice for libraries/toolkits.
-- J.
Am Donnerstag, 18. Oktober 2012 14:08:41 UTC+2 schrieb Marius Grama:
>
> My (dirty) workaround was extending AbstractCell class and adding the
> custom code within:
>
> @Override
> public void onBrowserEvent(final Context context, final Element parent,
> final C value,
> final NativeEvent event, final ValueUpdater<C>
> valueUpdater) {
>
> HasData<T> data = this.column.getTable();
> SelectionModel<? super T> selectionModel =
> data.getSelectionModel();
>
> if (selectionModel instanceof SingleSelectionModel) {
> T val = (T) ((SingleSelectionModel<? super T>)
> selectionModel).getSelectedObject();
> userChoiceHandler.onUserChoice(val);
> }
> }
>
> method.
>
> btw, has anyone an idea why the method getSelectionModel() from
> HasData<T> class returns
> SelectionModel<? super T>
> instead of
> SelectionModel<T>
> ?
>
>
> On Thursday, October 18, 2012 2:01:33 PM UTC+2, Marius Grama wrote:
>>
>> I have a scenario where i am working with a GWT DataGrid on which when
>> the user makes a double-click an event should be raised containing the
>> information about the model bean of the selected selected row.
>> e.g : For a DataGrid containing informations about persons (columns:
>> first name , last name, age) when a double click (or enter key on the
>> currently selected row of the datagrid) is made on one of the rows of the
>> datagrid a MessageBox should appear containing the full name person
>> selected.
>>
>> I've tried for some time to implement this scenario, but I haven't found
>> so far an elegant (and simple) way to implement it.
>>
>> Can anybody assist me on this problem?
>>
>
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