wicket：如何在 AjaxLazyLoadPanel 之后更新组件？

发布于 2024-11-09 01:30:30 字数 368 浏览 0 评论 0原文

我有一个页面，其中有一个状态文本标签和一个执行一些数据库查询的面板。由于查询可能需要一些时间，所以我使用它加载它

add(new AjaxLazyLoadPanel("resultPanel")
{
    @Override
public Component getLazyLoadComponent(String id) {
        return new SearchResultPanel(id);
    }
};

，效果非常好。

我的问题是如何更新 resultPanel 之外的状态标签，以显示搜索结果的数量？

我正在考虑 addComonent(target) 的思路，但我没有目标？我偏离轨道了吗？

原文

I have a page that has a status text label and a panel doing some DB query. since the query can take some time I am loading it using

add(new AjaxLazyLoadPanel("resultPanel")
{
    @Override
public Component getLazyLoadComponent(String id) {
        return new SearchResultPanel(id);
    }
};

which works very well.

My question is how to update the status label which is outside of the resultPanel, to show the number of search results?

I was thinking along the lines of addComonent(target) but I don't have a target? am i off the track?

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甚是思念 2024-11-16 01:30:30

那么 SearchResultPanel 可能看起来像这样：

public class SearchResultPanel extends Panel implements IHeaderContributor{
   public SearchResultPanel(String id){
      super(id);
      ....
   }
   public void renderHead(IHeaderResponse response){
      response.renderOnDomReadyJavascript("alert('hello');");
   }
}

现在，当它加载时，它应该抛出该 javascript。之前在 stackoverflow 上回答的另一种方法（尽管我不喜欢它）是使用 AjaxSelfUpdatingTimerBehavior，除非 javascript 应该运行一次我不喜欢的次数，但在我看来它仍然不太优雅。

在这里寻找他们的答案：Wicket：自动重新加载 AjaxLazyLoadPanel

Well the SearchResultPanel might look like this:

public class SearchResultPanel extends Panel implements IHeaderContributor{
   public SearchResultPanel(String id){
      super(id);
      ....
   }
   public void renderHead(IHeaderResponse response){
      response.renderOnDomReadyJavascript("alert('hello');");
   }
}

Now when it is loaded it should throw out that javascript. Another way answered on stackoverflow previously (though I do not like it) is to use an AjaxSelfUpdatingTimerBehavior, which unless the javascript should be ran more then once I do not like, and still it is less elegant in my opinion.

Look here for their answer: Wicket: reload AjaxLazyLoadPanel automatically

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