Add Alternative Text for Image and Bound Image Items in Web

• Apr 29, 2025

To ensure that your dashboard is accessible, specify alt text for image items: ImageItem and BoundImageItem. Screen readers identify image items as follows: “{alt text} graphic”.

Both Image and Bound Image dashboard items display alternative text when the image cannot be loaded.

Image

Select an Image item and open the Options menu. Specify alt text in the Alternative text option:

Alt text is saved in the dashboard XML definition.

In code, use the ImageItem.imageAltText property to specify alt text.

Bound Image

The Bound Image dashboard item contains the Alternative text data section with the corresponding placeholder. Add a data source field to supply data:

Create a calculated field and use it as an alt text source if you want to share more details with a screen reader.

To supply alt text for a Bound Image in code, use the BoundImageItem.imageAltTextItem property. Specify a dimension that contains required strings.