help needed on listbox

[twocool]

hi how can i populate a second listbox by jus clicking on a option from a first listbox? records are from a server.. can anyone pls help?

[raf]

:confused: :confused: :confused: :confused:
http://www.codingforums.com/showthread.php?s=&threadid=16966
:confused: :confused: :confused: :confused:

[twocool]

hey thanks for the reminder but wat i had earlier was something like i click a button then the 2nd listbox is filled wif records.. but wat i need now is something like i click the option in 1st listbox and it automatically fills the 2nd listbox. it is something like on selectedindexchanged? i am new to this..so i not sure how i am to go abt...

[raf]

well, that sort a action in clientsided. Most commonly javascript
(onclick="submit()" in the formelementtag). This means you just need to include some javascript when you build the form.

but i don't use it, cause not all users allow javascript + it tends to jump to quick sometimes (for instance, when you click the arrow to view the options) + each click then generates a call to the webserve and database. So each "false hit" will use up resources and in stead of doing your users a favor, you could be ending up annoying them (because responsetimes go up and they can get an list (second dropdown with unexpected/unwanted values)or get nothing at all (if they don't use javascript)