具有子行的GWT 2.5 DataGrid SelectionModel

Question

当使用TableBuilder创建行和亚行,如预期选择模型不能正常工作.单击子视图的复选框时,未选择该行,但是,将选择父行.

我尝试过载onBrowserEvent的CheckboxCell,以人工处理的选择,但似乎在DataGrid本身按checkboxcell时触发选择事件.

如果行和子行来自相同类型,如何添加支持行和子行的选择模型？

Answer 1

@Override
public void onBrowserEvent(Context context, Element elem, final T object,
        NativeEvent event) {
    // The provided row is always the root row, so we need to find the
    // correct one when a sub row was edited
    actualIndex = context.getSubIndex();
    actualObject = object;
    if (0 != context.getSubIndex() && object instanceof RowDTO) {
        actualIndex = context.getSubIndex();
        actualObject = (T) ((RowDTO) object).getChild(actualIndex - 1);
        context = new Context(context.getIndex(), context.getColumn(),
                actualObject, actualIndex);
    }

    ValueUpdater<C> valueUpdater = (getFieldUpdater() == null) ? null
            : new ValueUpdater<C>() {
                @Override
                public void update(C value) {
                    getFieldUpdater().update(actualIndex, object, value);
                }
            };

    getCell().onBrowserEvent(context, elem, getValue(actualObject), event,
            valueUpdater);
}