Comments on: Creating two related ComboBoxes

By: mandy

mandy — Sun, 17 Jul 2011 12:48:02 +0000

gr8 example….
i m searching for this code for a very long tym..
thanks a lot..:)

By: Rhys

Rhys — Mon, 30 May 2011 03:02:06 +0000

I am trying to create an autocomplete textbox/combobox for streetnames. There are around 1.4M street addresses I want in there. I have tried using XML for the datasource but it’s too slow. I was hoping I can use a table in SQL Server as the datasource instead. I’m sure this is possible but I am a Flex newbie and not sure how to do this. Will it be any faster getting the data from SQL Server, than XML?

By: mark b.

mark b. — Fri, 13 May 2011 17:08:54 +0000

Thanks Pete for the init set up Works Great, but I need to take it one step further. Once a user gets to this page Im reading xml data to pre-populate the comboboxes so as to set Canada and Alberta. I have no issue getting Canada to show up but I cannot get the Alberta to show up. I have tried everything and still no answer.

pre-populate with this: parentDocument.getEvent.lastResult.events.event.manufacturer_state

Thanks, Mark

By: Hugo Larcher

Hugo Larcher — Sat, 19 Mar 2011 12:40:45 +0000

just to answer my question above:

var selects:Array = ['Country','State'];
 
for (var i:int = 0; i &lt; selects.length; i++) {
	var formItem:FormItem = new FormItem();
 
	var comboBox:ComboBox = new ComboBox();
	comboBox.id = selects[i];
	comboBox.labelField = &#039;@name&#039;;
	if (i == 0) {
		comboBox.dataProvider = xml[selects[i]];
	} else if (parentCB is ComboBox) {
		BindingUtils.bindProperty(comboBox, &#039;dataProvider&#039;, parentCB, {name: &#039;selectedItem&#039;, getter: function (host:ComboBox):XMLList { return host.selectedItem.children(); }}, true);
	}
	formItem.addChild(comboBox);
	form.addChild(formItem);
}

By: Hugo Larcher

Hugo Larcher — Sat, 19 Mar 2011 11:09:01 +0000

I was wondering how would you go about to do this dynamically, especially the data binding in actionscript.

By: Jeff

Jeff — Fri, 11 Mar 2011 21:40:31 +0000

This does not work for me. Granted, the example at the top works on this web page. But when I try to reproduce it with SDK 3.5 – changing the selection on the first ComboBox only sometimes changes the list in the second ComboBox.

It is very irregular. I have tested and reproduced this in FB4 and FlashDevelop. FlashDevelop gives me an error “unable to bind to property on class ‘XML’ (class is not an IEventDispatcher)”

What am I missing here? Thanks.

By: Al

Al — Tue, 21 Dec 2010 18:21:51 +0000

Great example! How would this be done if you are not using an XML dataProvider for the Country ComboBox but are using a an ArrayCollection of Strings? So, based on the Country selection, you want to populate the State ComboBox with another ArrayCollection of Strings?

By: Sridhar

Sridhar — Mon, 20 Sep 2010 08:01:50 +0000

Appreciate your post! Loved it. Flex Examples to me has become a standard authority to refer for easy to understand examples of flex applications. Thank you sir.

By: leor

leor — Sun, 04 Jul 2010 16:00:53 +0000

how can i get an url by selecting state? if i select ohio i want to call ohio.html, how ?

By: flexnoob

flexnoob — Tue, 11 May 2010 06:44:35 +0000

Hi! I came across this entry while looking for an answer to my problem with two comboboxes.

My problem is about two side-by-side comboboxes which have the same data (same dataprovider?) When an item has already been selected in the first combobox, I need for the second combobox to automatically remove that selection in its list so that it will not be listed anymore on that second combobox’s list. Can this be done? If so, please tell me how to do it. Thanks in advance.