Poulate a option field on change

[kusal]

Hello

 

I have a category select menu, what I want is to when user select a category I have to repopulate the sub category select menu with items

 

can I do this with out AJAX, it does not matter if there is a another request

 

can I use a onchange to call another php function?

[Cep]

If you are using Javascript events your going to need to use an AJAX method.

[ansarka]

You can do this without using AJAX  ;) ;)

 

There are two ways

 

1. Using form reload

  In this method on change of the combobox will have to reload using the combobox value and fill the sub combo

    > Not so good method

 

2. Using javascript

    When you load the page you have to store all the subcategories in a javascript two dimensional array

    and on change of the main combobox you have to fill the sub combobox values by filtering the array of sub  categories

 

one doubt  ??? ???

:o :o

if you can allow the request you cannt you use ajax  ??? ??? ???

 

[Cep]

How would Javascript know what the new items were unless you planned to type them all into your Javascript file/tags?

 

It would more likely come from a database source, which will require a request to the server, which will be an AJAX method.

[ansarka]

i dont say you have to hard code the sub category fields

 

on loading the page you have to take it from sub category table and will have to dynamically create a javascritp array  : :

[kusal]

Thanks for the help, I found a solution

[Cep]

i dont say you have to hard code the sub category fields

 

on loading the page you have to take it from sub category table and will have to dynamically create a javascritp array  : :

 

And what happens when the data in sub category table changes? This will not update the users array and therefore would cause problems. AJAX is the only way to do this properly.

[atl_andy]

Can you provide a link or direction about the option you found?  I'm trying to get the same thing working, but my option uses AJAX and I would rather not reload the page.