vaadin]如何显示网格行的额外数据

Question

我使用了网格组件，并添加了行详细信息..

然而，网格没有显示细节..

这是我的代码。

====     网格=新网格（＆＃34; Plain Grid＆＃34;）;

grid.setDetailsGenerator(new DetailsGenerator() {
        @Override
        public Component getDetails(RowReference rowReference) {
            // Find the bean to generate details for
            final TrainingMemberVo bean = (TrainingMemberVo) rowReference.getItemId();

            // A basic label with bean data
            Label label = new Label("Extra data for " + bean.getMemberName());


            // A button just for the sake of the example
            Button button = new Button("Click me", new Button.ClickListener() {
                @Override
                public void buttonClick(ClickEvent event) {
                    Notification.show("Button clicked for " + bean.getMemberName());
                }
            });

            // Wrap up all the parts into a vertical layout
            VerticalLayout layout = new VerticalLayout(label,  button);
            layout.setSpacing(true);
            layout.setMargin(true);
            return layout;
        }
    });

    grid.addItemClickListener(new ItemClickListener() {
        @Override
        public void itemClick(ItemClickEvent event) {
            if (event.isDoubleClick()) {
                Object itemId = event.getItemId();
                grid.setDetailsVisible(itemId, !grid.isDetailsVisible(itemId));
            }
        }
    });

===

双击行，注意显示详细信息..

Answer 1

为我工作没有任何问题。您是否检查过itemClick（）中的事件是否被正确触发？ I. e。删除event.isDoubleClick（）的布尔检查以查看它是否被执行。