Hi alexis,

I think that this part of the code is wrong: this.firstElementChild.selectedValues[0].description. The reason is that there is no description field in the data source, and the other reason is that you may not have a selected value, too. This means that this.firstElementChild.selectedValues[0] is undefined.

Best regards,
Peter Stoev

Smart UI Team
https://www.htmlelements.com/