Multiselect List Boxes Validation Problem

[syam]

Hai Friends..

I have a search page and contains multiple multiselect list boxes, each containing 6 options. I want to check whether the user has checked atleast one option in each of those list boxes at the time the user clicking the Search button. How do i validate this .

Thanks in advance...

[gits]

hi ...

you have to loop through you 'multiple-selects' and check every one of them for

list_ref.selectedIndex != -1

the selectedIndex gives you the index of the first selected option in a list ... when nothing is selected the value of selectedIndex is -1.

kind regards