java - 如何在 wicket 中嵌套动态表？

Question

我正在使用 wicket 来显示表格列表。表的数量和每个表中的行数都是动态的。

我试图保持简单并为每个使用 RepeatingView，并嵌套它们，但 wicket 说:

java.lang.IllegalArgumentException: A child with id 'table' already exists

这是我的Java:

   RepeatingView view = new RepeatingView("listoftables");

    for (CCSubscription sub: getCustomer().getSubscriptions())  {

        //resource balance table
        ResourceBalance[] resBals = sub.getResourceBalances();
        if(resBals!=null && resBals.length>0)   {
        ListView<ResourceBalance> resBalTable = new ListView<ResourceBalance>("table", Arrays.asList(resBals)) {

            @Override
            protected void populateItem(ListItem<ResourceBalance> item) {
                ResourceBalance bal = item.getModelObject();
                item.add(new Label("resource", bal.getResource().getName()));
                item.add(new Label("balance", bal.getBalance()));
            }
        };
        view.add(resBalTable);
        }   //end if sub has non-null resource balance

    }   //end loop through subscriptions

    add(view);

我的 html 是:

<ul>
<li wicket:id="listoftables">
<fieldset>
<legend><b>Resource Balances</b>
</legend>
    <table class="dataview" style="width:50%">
        <thead>
            <tr class="headers">
                <th>Resource</th>
                <th>Balance</th>

            </tr>
        </thead>
        <tr wicket:id="table">
            <td>
                <span wicket:id="resource"></span>
            </td>
            <td>
                <span wicket:id="balance"></span>
            </td>
        </tr>
    </table>
</fieldset>
<br/>

我承认我可能以错误的方式解决这个问题，但我看不出正确的方法应该是什么。

希望有人能帮忙!？

Answer 1

好的，我开始工作了:

final ListView<CCSubscription> tables = new ListView<CCSubscription>(
            "tables", getCustomer().getSubscriptions()) {
        @Override
        protected void populateItem(ListItem<CCSubscription> item) {
            ListView<ResourceBalance> resBalTable = new ListView<ResourceBalance>("listview", Arrays.asList(item.getModel().getObject().getResourceBalances())) {

                @Override
                protected void populateItem(ListItem<ResourceBalance> item) {
                    ResourceBalance bal = item.getModelObject();
                    item.add(new Label("resource", bal.getResource().getName()));
                    item.add(new Label("balance", bal.getBalance()+""));
                }
            };
            item.add(resBalTable);
        }
    };

    add(tables);

HTML 如下所示:

<span wicket:id="tables">
<fieldset>
<legend><b>Resource Balances</b>
</legend>
    <table class="dataview" style="width:50%">
        <thead>
            <tr class="headers">
                <th>Resource</th>
                <th>Balance</th>

            </tr>
        </thead>
        <tr wicket:id="listview">
            <td>
                <span wicket:id="resource"></span>
            </td>
            <td>
                <span wicket:id="balance"></span>
            </td>


        </tr>
    </table>
</fieldset>
<br/>