Hi,

I want to creat a question dropdown list with search box (If the respondent writes a character, only displays the list that begins with this character) attachements : pic1

And i want to put 3 dropdown in the same question but if the respondent choose an option from the first dropdown, it will be hidden in the other 2 dropdowns attachements : pic2

For the first requirement, use the jQuery Autocomplete widget . Something like in this thread - www.limesurvey.org/forum/can-i-do-this-w...nd-validation#154827

The second requirement is possible but would require significant extra coding to filter the autocomplete source elements.

I use select2 now for this.