wicket 向导中的 GridView 无法呈现错误反馈消息 [英] A GridView inside a Wizard in wicket fails to render error feedback messages

问题描述

我有一个自定义向导，定义如下:

<div><form wicket:id="form" class="wizard"><span class="wizardoverview" wicket:id="overview"/><div class="wizardheader" wicket:id="header"/><div wicket:id="view" class="wizardpage"/><span wicket:id="feedback"/><div class="buttons"><span wicket:id="buttons"/>

</表单>

</wicket:panel>

在这种情况下，向导页面是一个具有自己形式的面板.这个表单包含一个新的 Panel，它又包含一个 GridView.GridView 包含一组面板，每个面板包含一个 FormComponentFeedbackBorder，后者又包含输入 TextField.

呸！

所以我们有这个:

Wizard->WizardpagePanel->Form->GridContainingPanel->GridView->Panel[]->FormComponentFeedbackBorder->TextField

当 TextField 验证失败时，根本不会呈现任何反馈.如果我向 GridContainingPanel 添加一个 FeedbackPanel，则会呈现错误消息，但 FormComponentFeedbackBorder 什么都不呈现.

任何关于可能出错的提示?

我遇到了类似的问题，使用 ListView 而不是 GridView，但是当我设置 listView.setReuseItems(true); 时，这个问题得到了解决；

GridView 有没有类似的设置，或者这个问题有什么不同的解决方案?

解决方案

就是这样:

gridView.setItemReuseStrategy(new ReuseIfModelsEqualStrategy());

解决了问题.

谢谢，rotsch.

I have a custom Wizard, defined as follows:

<wicket:panel>
    <div>
        <form wicket:id="form" class="wizard">
            <span class="wizardoverview" wicket:id="overview"/>

            <div class="wizardheader" wicket:id="header"/>
            <div wicket:id="view" class="wizardpage"/>
            <span wicket:id="feedback"/>

            <div class="buttons">
                <span wicket:id="buttons"/>
            </div>
        </form>
    </div>
</wicket:panel>

The wizardpage is in this case a Panel with its own form. This form contains a new Panel, which in turn contains a GridView. The GridView contains a set of Panels, which each contain a FormComponentFeedbackBorder, which in turn contains input TextFields.

Phew!

So we have this:

Wizard->WizardpagePanel->Form->GridContainingPanel->GridView->Panel[]->FormComponentFeedbackBorder->TextField

When TextField fails validation, no feedback is rendered at all. If I add a FeedbackPanel to the GridContainingPanel the error messages are rendered, but FormComponentFeedbackBorder renders nothing.

Any pointers as to what can be wrong?

I had a similar problem with a ListView instead of GridView, but that problem was resolved when I set listView.setReuseItems(true);

Is there a similar setting for GridView, or is there a different solution to this problem?

解决方案

That was it:

gridView.setItemReuseStrategy(new ReuseIfModelsEqualStrategy()); 

solved the problem.

Thanks, rotsch.

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