Hi,
Just trying to work with the javascript dropdownlist multiple values control and noticed that when using the 'unCheckAll' method it unchecks the checkboxes in the popup list however it fails to update the input textbox display so it looks like the items are still selected when the popup is hidden. Even though nothing is selected when using 'getCheckedItems' method.
Also when doing selectItemByIndex, if you do this twice it will continue to add the selected item into the input text box, so you can end up with multiple duplicate items in the input textbox.
Regards,
Paul