Refresh Grid and retain checkbox selections.

[polloelastico]

I am using the BasePagingLoader, ListStore and a CheckBoxSelectionModel. I have also added a timer to refresh the grid every N seconds using the loader.load method. However, if there were any items selected and checked they are unselected on the refresh. Can someone recommend a solution to this issue? Thank you.

[fother]

its simple..

before load the loader - get Items selected
after load the loader - get the items selected and selected in the grid again

[polloelastico]

So you are suggesting?



List<MyObject> items = sm.getSelectedItems();
// refresh
loader.load();
// repopulate the selected items.
sm.select(items, true);


This doesn't work for me. Thanks,

[sven]

loading is asynchron. You need to listen to the load event and reselect the entries there.

[polloelastico]

Thanks, that makes sense. However, the following code still does not select the items in the Model.



loader.load();
loader.addLoadListener(new LoadListener() {
@Override
public void loaderLoad(LoadEvent le) {
sm.select(items, true); // SelectionModel
}
});

[fother]

of course.. because the models its diferent when you load, load and load again..

you need implements..

example



grid.getStore().setModelComparer(new ModelComparer<EntidadeTreeModel>() {
@Override
public boolean equals(final MYModel m1, final MYModel m2) {

boolean aaa = m1.get("key");
boolean bbb = m1.get("key");


return aaa && bbb;
}
});

[fother]

or not :))

debug your code and test.. or provide a test case.. its more easy for all :)

[Arno.Nyhm]

should it be more like this?


grid.getStore().setModelComparer(new ModelComparer<EntidadeTreeModel>() {
@Override
public boolean equals(final MYModel m1, final MYModel m2) {

KeyObjectType k1 = m1.get("keycolumn");
KeyObjectType k2 = m2.get("key");

return k1.equals(k2); // if its string. if it is integer then k1 == k2
}
});
[/quote]