Hi,
I have used AJAX based cascading drop down menu based on slice
"http://www.web2pyslices.com/slice/show/1526/cascading-drop-down-lists-with-ajax-2";
I have introduced a third drop down whose value is populated based on the
selection of second drop down.
I am using the following code : (Not the exact code, but it'll be enough to
explain the flow)
*VIEWS:*
<select> <!-- DROPDOWN1-->
onchange="jQuery('#dropdown2_a').empty();
ajax('{{=URL('default','getoptionsfordropdown2'})}}', [''], 'dropdown2');">
..
</select>
<span id='dropdown2'>
<select id='dropdown2_a'> <!-- DROPDOWN2-->
onchange="jQuery('#dropdown3_a').empty();
ajax('{{=URL('default','getoptionsfordropdown3'})}}', [''], 'dropdown3');">
</select>
</span>
<span id='dropdown3'>
<select id='dropdown3_a'> <!-- DROPDOWN3-->
</select>
</span>
*CONTROLLER:*
getoptionsfordropdown2/getoptionsfordropdown3:
def ...
.... query the db and build SELECT ....
return SELECT(...)
*Problem:*
So, at any point of time, if the option in the drop down1 is not changed,
then everything works fine i.e. changes in dropdown2 updates the options in
dropdown3.
However, once the dropdown1 option is changed, dropdown3 contents are not
RESET (No code for it, and I need some guidance for it). So, I have to
change the option in dropdown2 and come-back in order to change the options
in dropdown3. Basically, once an option is changed in drop down1, user has
to change the option in dropdown2 once in order to update the dropdown3.
Can someone please suggest me on how to handle this situation such that
changing the dropdown1 should update dropdown3 as well (based on the value
of dropdown2).
Is it possible to call multiple forcefully trigger the onchange event for
dropdown2 once it is re-populated based on the changes in dropdown1.
--
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