Cannot expand root node of CellTree if viewModel is empty

[dankurka]

Originally reported on Google Code with ID 5969

Found in GWT Release (e.g. 1.5.3, 1.6 RC):
2.1.1

Detailed description (please be as specific as possible):
From torgeir.veimo@gmail.com:
"With GWT-2.2-M1, if you expand the root node of a cellTree before the viewModel has
any data, it's impossible to expand the root node later. The onOpen() method of an
OpenHandler is called, but the node is not actually expanded."

http://groups.google.com/group/google-web-toolkit/browse_thread/thread/d7a3f4951a8a2fed?hl=en#

Reported by jlabanca@google.com on 2011-02-02 15:16:11

[dankurka]

Reported by jlabanca@google.com on 2011-04-13 21:02:45

• Labels added: Milestone-2_4
• Labels removed: Milestone-2_3

[dankurka]

Is this fixed somehow? I am running into this issue right now, GWT 2.4.

Workaround working for me:

    public void updateData(List<Mandator> mandators) {

        mandatorsDataProvider.getList().clear();

        // GWT ISSUE 
        if (mandators.size() == 0)
            mandatorsDataProvider.getList().add(null);
        else
            mandatorsDataProvider.getList().addAll(mandators);

    }

Reported by pgtaboada on 2012-04-24 14:09:18

[dankurka]

Reported by dankurka@google.com on 2013-06-03 12:43:37

• Status changed: AssumedStale