Multi-select support for AjaxDropdownPreloader control

AjaxDropdownPreloader control allows to have a pair of dependent fields on a page. Usually dependent field is a dropdown.

For example groups dropdown (master) and users dropdown (dependent). In such case on each "groups dropdown" change an "users dropdown" is revised to contains only records, associated with that group.

I recently discovered however, that in case of dependent field has multiple attribute (e.g. <select name="test" multiple>...</select>), then JavaScript error is shown instead of record revising.

multi_select_support_in_dropdown_preloader.patch

Related Tasks

INP-1318 - Getting issue details... STATUS