如何使用ui:repeat标签在dataTable中动态生成ID

问题描述

我正在使用ui:repeat标记来渲染图像.我有五个图像，我希望在每次迭代中我的图像都获得像image1，image2，image3 .... imagen这样的ID.我试过了，但是没用.

I am using ui:repeat tag which render images. I have five images i want that on each iteration my image get ids like image1, image2, image3.... imagen. I tried this but it is not working.

<div id="imageGallery">
    <ui:repeat value="#{countryPages_Setup.images}" var="image" varStatus="status">
        <tr>
            <td>
                <a href="javascript:void()" class="launchLink">
                    <p:graphicImage id="image#{status.index}"         //problem
                                    value="/resources/images/#{image}"
                                    width="100"
                                    height="100"
                                    rendered="#{countryPages_Setup.renderImages}"/>
                </a>
            </td>
        </tr>
    </ui:repeat>
</div>

我还尝试了{staus.index + 1}.我也尝试过id = image#{1 ++}，但它也不起作用.我该怎么办?

I also tried {staus.index + 1}. I also tried id= image#{1++} But it is also not working. How can i do it?

谢谢

推荐答案

您不能在id属性内使用el表达式.它必须是静态的. ui:repeat本身会为您的ID生成一个前缀.您不需要关心唯一性.

You cannot use el expressions within the id attribute. It needs to be static. The ui:repeat itself generates a prefix to your id. You don't need to care about uniqueness.

例如，如果您有id="image"，则生成的ID为

So, for instance if you have an id="image", then the generated ids are

somePrefix:0:image，somePrefix:1:image，...

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