如何在网站的xe:carousel组件中为图片设置alt标签？

Great question! The XPages <xe:slide> component has a built-in property specifically for this: backgroundAlt. You can add it directly to your slide tag and bind it to your viewScope data (or use static text if that's what you need).

Here's how to modify your existing code to include the alt text:

<xe:carousel>
  <xe:this.slideNodes>
    <xe:slide 
      loaded="${viewScope.images[0].url ne null}" 
      buttonStyleClass="btn btn-link"
      backgroundAlt="${javascript:viewScope.images[0].alt}" <!-- New line for alt text -->
    >
      <xe:this.backgroundSrc>
        <![CDATA[${javascript:viewScope.images[0].url}]]>
      </xe:this.backgroundSrc>
      <xe:this.buttonLabel>
        <![CDATA[${javascript:viewScope.ctitles[0]}]]>
      </xe:this.buttonLabel>
      <!-- Rest of your slide content -->
    </xe:slide>
    <!-- Repeat for other slides with matching viewScope indices -->
  </xe:this.slideNodes>
</xe:carousel>

A few quick tips:

• I assumed you have an alt property in your viewScope.images object—adjust this to match your actual data structure (e.g., if alt text is stored in viewScope.imageAlts[0], use that instead).
• For static alt text, skip the JavaScript binding and set it directly: backgroundAlt="Blah blah"
• Make sure to add this attribute to every slide node, updating the index for each one (like viewScope.images[1].alt for the second slide).

This will add the required alt attribute to each carousel slide's background image, exactly what you're looking for.

内容的提问来源于stack exchange，提问作者Mike Zens