Hi folks,
I have a below a simple scenario:
1. I have a grid populated with data
2. I select any 1 row from grid - data with a specific "Object
Id" [internal id]
3. I press a refresh button from a paginationToolbar
4. data are refreshed
5. no row from grid is being selected.
Question 1:
How can I change a step 5, so after refresh a row with specific Object
Id (from step 2) would be automaticaly selected?
I tried to implement a LoadListener to loader, but it seems like I'm
incorrectly selecting a row from my grid.
Here is a bit of my code:
1. A global variable of type "Zakazka" to store a Zakazka before
refresh occures (the one which should be selected after refresh):
Code:
private Zakazka selectedZakazka;
2. Here is my grid definition with loader's load listener
Code:
RpcProxy<PagingLoadResult<Zakazka>> proxy = new
RpcProxy<PagingLoadResult<Zakazka>>() {
@Override
public void load(Object loadConfig,
AsyncCallback<PagingLoadResult<Zakazka>> callback) {
Tracing.Log("ZakazkyAktivne.RpcProxy.load.before");
service.getZakazky((PagingLoadConfig) loadConfig,
callback);
Tracing.Log("ZakazkyAktivne.RpcProxy.load.after");
}
};
// loader
final PagingLoader<PagingLoadResult<ModelData>> loader = new
BasePagingLoader<PagingLoadResult<ModelData>>(proxy);
loader.setRemoteSort(true);
ListStore<Zakazka> store = new ListStore<Zakazka>(loader);
pagingToolBar = new PagingToolBar(50);
pagingToolBar.bind(loader);
List<ColumnConfig> columns = new ArrayList<ColumnConfig>();
columns.add(new ColumnConfig("object_id", "Object Id", 80));
columns.add(new ColumnConfig("cislo_dokladu", "Číslo dokladu",
100));
ColumnConfig created = new ColumnConfig("created", "Dátum
vytvorenia", 105);
created.setDateTimeFormat(DateTimeFormat.getFormat("dd.MM.yyyy
HH:mm:ss"));
columns.add(created);
columns.add(new ColumnConfig("objednavatel", "Objednavatel",
120));
columns.add(new ColumnConfig("stredisko", "Stredisko", 150));
columns.add(new ColumnConfig("stav_zakazky_id", "Id stavu
zakazky", 60));
columns.add(new ColumnConfig("stav_zakazky_kod", "Kód stavu
zakazky", 100));
columns.add(new ColumnConfig("stav_zakazky", "Stav zakazky",
100));
columns.add(new ColumnConfig("stav_zakazky_zmenil_uziv_meno",
"Zakazku změnil", 100));
ColumnConfig updated = new ColumnConfig("stav_zakazky_zmena",
"Dátum změny", 105);
updated.setDateTimeFormat(DateTimeFormat.getFormat("dd.MM.yyyy
HH:mm:ss"));
columns.add(updated);
ColumnModel cm = new ColumnModel(columns);
gridZakazka = new Grid<Zakazka>(store, cm);
gridZakazka.setStateId("pagingGridExample");
gridZakazka.setStateful(true);
gridZakazka.addListener(Events.Attach, new
Listener<GridEvent<Zakazka>>() {
public void handleEvent(GridEvent<Zakazka> be) {
PagingLoadConfig config = new BasePagingLoadConfig();
config.setOffset(0);
config.setLimit(50);
Map<String, Object> state = gridZakazka.getState();
if (state.containsKey("offset")) {
int offset = (Integer)state.get("offset");
int limit = (Integer)state.get("limit");
config.setOffset(offset);
config.setLimit(limit);
}
if (state.containsKey("sortField")) {
config.setSortField((String)state.get("sortField"));
config.setSortDir(SortDir.valueOf((String)state.get("sortDir")));
}
loader.load(config);
}
});
gridZakazka.getSelectionModel().addListener(Events.SelectionChange,
new Listener<SelectionChangedEvent<Zakazka>>() {
public void handleEvent(SelectionChangedEvent<Zakazka>
be) {
if (be.getSelection().size() > 0) {
Tracing.Log("Grid selection changed");
formBindings.bind((ModelData)
be.getSelection().get(0));
setZakazkaDetailToolBar(be.getSelectedItem().getZakazkaObjectId(),
be.getSelectedItem().getZakazkaStavZakazkyId());
//
getLogZakazkaGrid(be.getSelectedItem().getZakazkaObjectId());
//pagingToolBarLog.refresh();
} else {
Tracing.Log("Nothing selected");
formBindings.unbind();
zakazkaDetailToolBar.removeAll();
}
}
});
loader.addLoadListener(new LoadListener() {
@Override
public void loaderLoad(LoadEvent le)
{
// Run your selection logic here
Tracing.Log("loaderLoad invoked!");
gridZakazka.getSelectionModel().select(selectedZakazka, false);
Tracing.Log("selectedZakazka selected");
}
});
gridZakazka.setLoadMask(true);
gridZakazka.setBorders(true);
3. Selected zakazka is remembered before refresh using a below code:
Code:
public void changeZakazkaStatus(Integer zakazkaId,
Integer novyStatusId) {
final DatabaseServiceAsync service = (DatabaseServiceAsync)
Registry.get(Agdoprava.SERVICE);
AsyncCallback<Boolean> callback = new AsyncCallback<Boolean>() {
public void onFailure(Throwable caught) {
System.out.println(caught.getMessage());
}
public void onSuccess(Boolean result) {
if (result) {
Tracing.Log("Zakazka STATUS updated successfully!");
selectedZakazka =
gridZakazka.getSelectionModel().getSelectedItem();
Tracing.Log("Selected zakazka Object ID:" +
selectedZakazka.getZakazkaObjectId());
// refresh main grid
pagingToolBar.refresh();
Tracing.Log("Refresh OK");
}
else {
Tracing.Log("Zakazka STATUS update failed!");
}
}
};
// execute RPC
service.updateZakazkaStatus(zakazkaId, novyStatusId,
StaticDataController.LoggedUzivatelId, callback);
}
4. Tracing log
Code:
2010-11-19 09:06:13.739| Zakazka STATUS updated successfully!
2010-11-19 09:06:13.739| Selected zakazka Object ID:123
2010-11-19 09:06:14.066| ZakazkyAktivne.RpcProxy.load.before
2010-11-19 09:06:14.082| ZakazkyAktivne.RpcProxy.load.after
2010-11-19 09:06:14.082| Refresh OK
ZakazkaManager.getZakazky()
2010-11-19 09:06:14.436| Nothing selected
2010-11-19 09:06:14.877| loaderLoad invoked!
2010-11-19 09:06:14.877| selectedZakazka selected
>From my tracing log I can see, that selectedZakazka is set correctly
and prior refresh and also that loader.LoadListener is invoked after
refresh. Just a row in grid stays unselected. So, I assume a piece of
code in loader's LoadListener [in step 2 above] is incorrect, or
uncomplete.
Could you please suggest how to correct it, so selectedZakazka will be
also selected after refresh?
Many thanks,
Tomas
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to google-web-tool...@googlegroups.com.
To unsubscribe from this group, send email to
google-web-toolkit+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
