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你好朋友我正在开发一个GWT应用程序，我正在使用TreeGrid。当我在这个矿类使用规则的网格状：如何刷新GWT中的TreeGrid？
RpcProxy<ListLoadResult<GwtDatastoreAsset>> proxy = new RpcProxy<ListLoadResult<GwtDatastoreAsset>>() {
@Override
protected void load(Object loadConfig, AsyncCallback<ListLoadResult<GwtDatastoreAsset>> callback) {
if (selectedDevice != null) {
dataService.findAssets((LoadConfig) loadConfig, currentSession.getSelectedAccount().getId(), selectedDevice, callback);
}
}
};
loader = new BaseListLoader<ListLoadResult<GwtDatastoreAsset>>(proxy);
loader.load();
SwappableListStore<GwtDatastoreAsset> store = new SwappableListStore<GwtDatastoreAsset>(loader);
assetGrid = new Grid<GwtDatastoreAsset>(store, new ColumnModel(configs));
assetGrid.setBorders(false);
assetGrid.setStateful(false);
assetGrid.setLoadMask(true);
assetGrid.setStripeRows(true);
assetGrid.getView().setAutoFill(true);
assetGrid.getView().setEmptyText(MSGS.assetTableEmptyText());
assetGrid.disableTextSelection(false);
在我的刷新方法在这个类我只是做assetGrid.getStore（）getLoader（）负载（）; 这就是它，但与TreeGrid我不能这样做。这是我TreeGrid的方法：
AsyncCallback<List<GwtTopic>> topicsCallback = new AsyncCallback<List<GwtTopic>>() {
@Override
public void onSuccess(List<GwtTopic> topics) {
store.add(topics, true);
topicInfoGrid.unmask();
}
@Override
public void onFailure(Throwable t) {
FailureHandler.handle(t);
topicInfoGrid.unmask();
}
};
dataService.findTopicsTree(currentSession.getSelectedAccount().getId(), topicsCallback);
topicInfoGrid = new TreeGrid<GwtTopic>(store, new ColumnModel(configs));
topicInfoGrid.setBorders(false);
topicInfoGrid.setStateful(false);
topicInfoGrid.setLoadMask(true);
topicInfoGrid.mask("Loading");
topicInfoGrid.setStripeRows(true);
topicInfoGrid.getView().setAutoFill(true);
topicInfoGrid.getView().setEmptyText(MSGS.topicInfoGridEmptyText());
topicInfoGrid.disableTextSelection(false);
所以我的问题是如何使TreeGrid的刷新方法，就像我用常规网格完成。