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Question  posted by druyd on Sep 07, 2009 04:55
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dhtmlx Combo grouping - visibility problem

Hi,
i have 2 dhtmlCombo objects grouped.
(I will refer to those object wiht "A" & "B").
"B" combo is attached to "A" combo as a child.
My problem is that on loading page, "B" combo is not visible
and it remains unvisible until when you will not assign a value to "A" combo.
As I saw in your examples like "Combo groups in the same container", it seems that this is the default behaviour.
Is it possible to set child combo always visible even if it has blank value?
Another problem is than when I reset "A" combo value (setting blank value),
"B" combo (for the same reason as above) disappears.
Thank a lot.
Druyd
Answer posted by Alex (suppot) on Sep 07, 2009 05:03

Hello, 

it is possible to modify the dhtmlxcombo_groups.js as you need. But possibly it will be better set custom onChange event handler instead of using "groups":

combo_A.attachEvent("onChange",function(){

combo_B.clearAll(true);

combo_B.loadXML(url+"?parent="+combo_A.getActualValue());

})