Re: [flexcoders] Problems With my XML Created Array Collection
We had the same issue, and in our case it was an easy fix. When we read in the
XML it was returning as an ArrayCollection as long as there were multiple
nodes. As you have found, if it was only one node it returned as a generic
object not an ArrayCollection. We were already looping through the
ArrayCollection to populate value objects that we were using to populate our
list. So before the loop we added, if xmlObject is an ArrayCollection than
loop else populate VO with returned data. Worked without issues ever since.
Robert
From: thomas parquier mailingli...@web-attitude.fr
To: flexcoders@yahoogroups.com
Sent: Mon, April 19, 2010 9:27:13 AM
Subject: Re: [flexcoders] Problems With my XML Created Array Collection
what about xmllistcollection ?;
---
thomas parquier
http://www.web- attitude. fr/realisations/
msn : thomas.parquier@ web-attitude. fr
softphone : sip:webattitude@ ekiga.net
téléphone portable : +33601 822 056
2010/4/19 James garymoorcroft_ i...@yahoo. co.uk
In my app I have an array collection which populates a tilelist. This array
collection is populated by a remote xml file via a http request. Problem is if
the xml only has 1 or no nodes I get a null object reference error. I know
this is a known problem but I've never been able to find a valid solution for
it which could be applied to my code. I've heard of looping through the xml to
create an array collection or using xmllist collection but I don't know how
these can be done whilst still allowing the data to be displayed in the
tilelist. Can anyone help me out please?
The code for my httpservice, array collcection I'm trying to make and the
result of the http service and the tilelist it populates is shown below. As I
say this all works fine as long as the xml has more than 1 node but causes
the error if it doesn't:-
mx:HTTPService id=LinksService result=linksResultHandler( event)
resultFormat=object method=POST url=http://www.coolvisi ontest.com/
getlinks. php/
mx:Script
![CDATA[
import mx.rpc.events. ResultEvent;
import mx.collections. ArrayCollection;
[Bindable] private var LinksFullAC: ArrayCollection;
private function linksResultHandler( event:ResultEven t):void
{
LinksFullAC= LinksService. lastResult. categories.
category as ArrayCollection;
}
]]
/mx:Script
mx:TileList id=linkChoice dataProvider={LinksFullAC} height=365
width=665/
Here's my xml structure:-
categories
category
id/id
label/label
icon/icon
/category
/categories
Obviously I need the array collection to be populated by id, label and icon.
Thanks for any suggestions.
Re: [flexcoders] Re: Problems With my XML Created Array Collection
This is not exactly how I would implement, but you should get the idea. If you
have multiple category nodes, then your
LinksService.lastResult.categories.category is returned as an ArrayCollection
and your code works. If it only has one node then
LinksService.lastResult.categories.category is returned as an ObjectProxy. So
in your return method you could have the following.
if(LinksService.lastResult.categories.category is ArrayCollection){
LinksFullAC=LinksService.lastResult.categories.category as
ArrayCollection;
}else
{
var oCat:Object = new Object();
oCat.id = LinksService.lastResult.categories.category.id;
oCat.label = LinksService.lastResult.categories.category.label;
oCat.icon = LinksService.lastResult.categories.category.icon;
LinksFullAC.addItem(oCat); // NOTE: LinksFullAC needs to not only be
previously declared, but must also me instantiated with new ArrayCollection()
for this line to work.
}
From: James garymoorcroft_...@yahoo.co.uk
To: flexcoders@yahoogroups.com
Sent: Mon, April 19, 2010 9:58:33 AM
Subject: [flexcoders] Re: Problems With my XML Created Array Collection
The thing is my xml is retrieved from a mysql database table which sometimes
will have no records or 1 record which will mean the xml will have only 1 or no
nodes which in turn causes the problem whereas sometimes it has many records
therefore the xml file would have many nodes which would mean no problems.
I've heard of looping but can't figure out how to do it or apply it to my code.
I've tried simply changing the array collection to xmllist collection but then
the data doesn't seem to appear in my tilelist.
How would you loop using my specific code there because I always need it
returned as an array collection to populate the tilelist but have no idea how
to loop?
Cheers for your help so far.
--- In flexcod...@yahoogro ups.com, Robert Moss rdm0...@... wrote:
We had the same issue, and in our case it was an easy fix. When we read in
the XML it was returning as an ArrayCollection as long as there were multiple
nodes. As you have found, if it was only one node it returned as a generic
object not an ArrayCollection. We were already looping through the
ArrayCollection to populate value objects that we were using to populate our
list. So before the loop we added, if xmlObject is an ArrayCollection than
loop else populate VO with returned data. Worked without issues ever since.
Robert
_ _ __
From: thomas parquier mailinglists@ ...
To: flexcod...@yahoogro ups.com
Sent: Mon, April 19, 2010 9:27:13 AM
Subject: Re: [flexcoders] Problems With my XML Created Array Collection
what about xmllistcollection ?;
---
thomas parquier
http://www.web- attitude. fr/realisations/
msn : thomas.parquier@ web-attitude. fr
softphone : sip:webattitude@ ekiga.net
téléphone portable : +33601 822 056
2010/4/19 James garymoorcroft_ i...@yahoo. co.uk
In my app I have an array collection which populates a tilelist. This array
collection is populated by a remote xml file via a http request. Problem is
if the xml only has 1 or no nodes I get a null object reference error. I
know this is a known problem but I've never been able to find a valid
solution for it which could be applied to my code. I've heard of looping
through the xml to create an array collection or using xmllist collection
but I don't know how these can be done whilst still allowing the data to be
displayed in the tilelist. Can anyone help me out please?
The code for my httpservice, array collcection I'm trying to make and the
result of the http service and the tilelist it populates is shown below. As
I say this all works fine as long as the xml has more than 1 node but
causes the error if it doesn't:-
http://www.coolvisi ontest.com/ getlinks. php/
mx:Script
![CDATA[
import mx.rpc.events. ResultEvent;
import mx.collections. ArrayCollection;
[Bindable] private var LinksFullAC: ArrayCollection;
private function linksResultHandler( event:ResultEven t):void
{
LinksFullAC= LinksService. lastResult. categories.
category as ArrayCollection;
}
]]
/mx:Script
mx:TileList id=linkChoice dataProvider= {LinksFullAC} height=365
width=665/
Here's my xml structure:-
categories
category
id/id
label/label
icon/icon
/category
/categories
Obviously I need the array collection to be populated by id, label and icon.
Thanks for any suggestions.
Re: [flexcoders] Re: Problems With my XML Created Array Collection
In essence yes, I do not think I would do it as part of the button click, but
instead clear it before the IF in the result handler with LinksFullAC.source =
new Array(); or LinksFullAC.removeAll(); I prefer the former.
As for your error, I'm not sure what's happening, but you should be able to set
a break in the result handler and see what is getting returned. It looks like
for the combination you describe, categories is not getting returned for some
reason. You'll need to figure out why and trap for it. The same goes for
returning 0 records. See what is getting returned and trap for it.
From: James garymoorcroft_...@yahoo.co.uk
To: flexcoders@yahoogroups.com
Sent: Mon, April 19, 2010 12:47:15 PM
Subject: [flexcoders] Re: Problems With my XML Created Array Collection
Hi Robert. Thanks so much for that my friend.
I have some problems with it though. You see I have an event in my app applied
to a button (refresh button) which resends data via the LinksService i.e.
LinksService. send and I've noticed that with your code if there is only 1 link
i.e. 1 node and I click the refresh button it seems to keep recreating that 1
over and over again as if it's recreating the same object in the array
collection or something. This doesn't happen if their are 2 or more
links/nodes/ objects. Perhaps I'll have to get the refresh button to empty the
array collection first before sending the data i.e. it's click function would
be LinksFullAC. flush; LinksService. send() Am I right?
I've also noticed now with your code applied if I select an item in the
tilelist and click the reresh button I get the error Property categories not
found on String and there is no default value which is indicating the error at
the if statement in the code you gave me and the LinksService itself. Any idea
what's causing this?
Another question though what if the xml contains no nodes?
You see my xml file is dynamic, I have a variable in my app called categoryid
and that variable is based on a category that the user selects in my app and is
submitted to getlinks.php which gets all the records from my mysql table which
contain that specific submitted categoryid and output them as the xml file.
Some categoryids have no records (the user can add and delte records via my
app). Is there any way of getting it to handle 0 records/nodes as well as
handling muliple records/1record which it seems to already do?
Thanks so much for your help. Sorry to be a pain :-(
--- In flexcod...@yahoogro ups.com, Robert Moss rdm0...@... wrote:
This is not exactly how I would implement, but you should get the idea. If
you have multiple category nodes, then your LinksService. lastResult.
categories. category is returned as an ArrayCollection and your code works.
If it only has one node then LinksService. lastResult. categories. category
is returned as an ObjectProxy. So in your return method you could have the
following.
if(LinksService. lastResult. categories. category is ArrayCollection) {
LinksFullAC= LinksService. lastResult. categories. category as
ArrayCollection;
}else
{
var oCat:Object = new Object();
oCat.id = LinksService. lastResult. categories. category. id;
oCat.label = LinksService. lastResult. categories. category. label;
oCat.icon = LinksService. lastResult. categories. category. icon;
LinksFullAC. addItem(oCat) ; // NOTE: LinksFullAC needs to not only
be previously declared, but must also me instantiated with new
ArrayCollection( ) for this line to work.
}
_ _ __
From: James garymoorcroft_ i...@...
To: flexcod...@yahoogro ups.com
Sent: Mon, April 19, 2010 9:58:33 AM
Subject: [flexcoders] Re: Problems With my XML Created Array Collection
The thing is my xml is retrieved from a mysql database table which sometimes
will have no records or 1 record which will mean the xml will have only 1 or
no nodes which in turn causes the problem whereas sometimes it has many
records therefore the xml file would have many nodes which would mean no
problems.
I've heard of looping but can't figure out how to do it or apply it to my
code. I've tried simply changing the array collection to xmllist collection
but then the data doesn't seem to appear in my tilelist.
How would you loop using my specific code there because I always need it
returned as an array collection to populate the tilelist but have no idea how
to loop?
Cheers for your help so far.
--- In flexcod...@yahoogro ups.com, Robert Moss rdm0004@ wrote:
We had the same issue, and in our case it was an easy fix. When we read in
the XML it was returning as an ArrayCollection as long as there were
multiple nodes. As you have found, if it was only one node it returned as
a generic object not an ArrayCollection. We were already looping through
Re: [flexcoders] Re: Problems With my XML Created Array Collection
Yes use a third if statement like: if(event.result.categories)
if(event.result.categories != null) should also work
Notice I used event.result instead of LinksService.lastResult. Small change,
but you should get in the habit as LinksService.lastResult will cause some pain
in the future if you decide to change it's name for some reason.
Amy suggested using e4x which is probably the correct answer as e4x grants you
consistency ( you do not have the arrayCollection returned sometimes and
ObjectProxy others) and allows you to work with XML in actionscript like XML
was meant to be accessed. You will still have to trap for the same issues,
just implemented in a different way. We do not always use e4x although we
probably should, being lazy will probably bite us one of these days.
From: James garymoorcroft_...@yahoo.co.uk
To: flexcoders@yahoogroups.com
Sent: Mon, April 19, 2010 2:11:16 PM
Subject: [flexcoders] Re: Problems With my XML Created Array Collection
You were right about removeall (flush ha whoops) helping. I applied removeall
before the if statements like you said and the first error is now gone.
The only problem I have now is the error which occurs when there are NO nodes
in the xml i.e. all items have been removed and there are no values in my mysql
table which relate to that specific category id.
I've changed the code to this:-
private function linksResultHandler( event:ResultEven t):void
{
LinksFullAC. removeAll( );
if(LinksService. lastResult. categories. category is ArrayCollection) {
LinksFullAC= LinksService. lastResult. categories. category as ArrayCollection;
}else if (LinksService. lastResult. categories. category is ObjectProxy)
{
var oCat:Object = new Object();
oCat.linkid = LinksService. lastResult. categories. category. linkid;
oCat.categoryid = LinksService. lastResult. categories. category. categoryid;
oCat.label = LinksService. lastResult. categories. category. label;
oCat.icon = LinksService. lastResult. categories. category. icon;
oCat.link = LinksService. lastResult. categories. category. link;
LinksFullAC. addItem(oCat) ;
}
}
The thing is though in that code I have the first if statement to check for if
the result is an array collection which sets it as an array collection, the
second if statement which if it is an object proxy adds the single object to
the array collection but I think what I'll need is a third if statement which
checks if the xml is empty/null or something and assign what will happen if it
is null. Do you know of any way to do this and if so what do you think is best
to set as the operation of such an if statement to make sure this error doesn't
occur anymore? I thought it might be something like:-
if(LinksService. lastResult. categories. category is null)
but there seems to be no such thing. Any ideas?
Sorry to keep hassling but it's pretty much the last hiccup I've got in my app
and I always try to pick the brains of guys who know their stuff as much as I
can :-)
--- In flexcod...@yahoogro ups.com, Robert Moss rdm0...@... wrote:
In essence yes, I do not think I would do it as part of the button click, but
instead clear it before the IF in the result handler with LinksFullAC. source
= new Array(); or LinksFullAC. removeAll( ); I prefer the former.
As for your error, I'm not sure what's happening, but you should be able to
set a break in the result handler and see what is getting returned. It looks
like for the combination you describe, categories is not getting returned for
some reason. You'll need to figure out why and trap for it. The same goes
for returning 0 records. See what is getting returned and trap for it.
_ _ __
From: James garymoorcroft_ i...@...
To: flexcod...@yahoogro ups.com
Sent: Mon, April 19, 2010 12:47:15 PM
Subject: [flexcoders] Re: Problems With my XML Created Array Collection
Hi Robert. Thanks so much for that my friend.
I have some problems with it though. You see I have an event in my app
applied to a button (refresh button) which resends data via the LinksService
i.e. LinksService. send and I've noticed that with your code if there is only
1 link i.e. 1 node and I click the refresh button it seems to keep recreating
that 1 over and over again as if it's recreating the same object in the array
collection or something. This doesn't happen if their are 2 or more
links/nodes/ objects. Perhaps I'll have to get the refresh button to empty
the array collection first before sending the data i.e. it's click function
would be LinksFullAC. flush; LinksService. send() Am I right?
I've also noticed now with your code applied if I select an item in the
tilelist and click the reresh button I get the error Property categories not
found on String and there is no default value which is indicating the error
at the if statement in the code you gave me and the LinksService
Re: [flexcoders] How to tell if colorpicker is open
I was hoping to not have to keep track with flags in my code, but interrogate the component for it's state. However, using flags is still better than using mx_internal. Thanks. --- On Sat, 2/27/10, Alex Harui aha...@adobe.com wrote: From: Alex Harui aha...@adobe.com Subject: Re: [flexcoders] How to tell if colorpicker is open To: flexcoders@yahoogroups.com flexcoders@yahoogroups.com Date: Saturday, February 27, 2010, 1:04 AM There should be open/close events On 2/26/10 2:29 PM, Robert Moss rdm0...@yahoo. com wrote: I can not seem to find a way to tell programmatically if the colorpicker is open. Internally it uses the showingDropdown property, but it is not exposed. I could use myColorPicker. mx_internal: :showingDropdown but there has to be a better way. I'm sure I'm just missing it. -- Alex Harui Flex SDK Team Adobe System, Inc. http://blogs. adobe.com/ aharui
[flexcoders] How to tell if colorpicker is open
I can not seem to find a way to tell programmatically if the colorpicker is open. Internally it uses the showingDropdown property, but it is not exposed. I could use myColorPicker.mx_internal::showingDropdown but there has to be a better way. I'm sure I'm just missing it.
Re: [flexcoders] Need light shed on Array issue
Sorry for bumping this, just hoping someone has an idea.
Thanks,
Robert "Robert Moss" [EMAIL PROTECTED] 12/8/2006 4:47 pm
In Adobe's dashboard sample app, http://www.adobe.com/devnet/flex/samples/dashboard/ it assigns a charting component's dataProvider to an ArrayCollection's source(e.g. revenueData="{slicedRegionData.source}") In the regionChange() function it sets the array regionData and assigns it to slicedRegionData.source
My question is, the delivered code
slicedRegionData.source = regionData.slice(slider.values[0], slider.values[1] + 1); Alert.show(ObjectUtil.toString(slicedRegionData.source));
and
slicedRegionData.source = regionData; Alert.show(ObjectUtil.toString(slicedRegionData.source));
Without the .slice, output the exact same data, but the region detail does not auto update without using the .slice code. WHY??? Thanks for any insight on this.
Robert** Confidentiality Notice: This e-mail and any files transmitted with it are confidential to the extent permitted by law and intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error please notify the originator of the message and destroy all copies. **
** Confidentiality Notice: This e-mail and any files transmitted with it are confidential to the extent permitted by law and intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error please notify the originator of the message and destroy all copies. **
gif4Ne10jRYNs.gif
Description: GIF image
binhh6RmXERXy.bin
Description: image/xxx
[flexcoders] Need light shed on Array issue
In Adobe's dashboard sample app,
http://www.adobe.com/devnet/flex/samples/dashboard/ it assigns a
charting component's dataProvider to an ArrayCollection's source (e.g.
revenueData={slicedRegionData.source}) In the regionChange() function
it sets the array regionData and assigns it to slicedRegionData.source
My question is, the delivered code
slicedRegionData.source = regionData.slice(slider.values[0],
slider.values[1] + 1);
Alert.show(ObjectUtil.toString(slicedRegionData.source));
and
slicedRegionData.source = regionData;
Alert.show(ObjectUtil.toString(slicedRegionData.source));
Without the .slice, output the exact same data, but the region detail
does not auto update without using the .slice code. WHY??? Thanks for
any insight on this.
Robert
** Confidentiality Notice: This e-mail and any files transmitted with it are
confidential to the extent permitted by law and intended solely for the use of
the individual or entity to whom they are addressed. If you have received this
e-mail in error please notify the originator of the message and destroy all
copies. **
[flexcoders] itemEditEnd event on datagrid
in the following code, which I copied out of the livedocs and modified to throw an alert when the itemEditEnd event is fired, it seems that every time the cell you are editingloses focus,the event gets kicked off 5 times, the first 4 times with a reason of "other" and the last with "new_column".What am I missing. I'm trying to kick off code when a cell is changed, but I do not want it to run 5 times. Thanks.
Robert
?xml version="1.0"?mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:local="*"
mx:Script ![CDATA[ import mx.controls.TextInput; import mx.events.DataGridEvent; import mx.controls.Alert; import mx.utils.ObjectUtil; private var initDG:Array = [ {Company: 'Acme', Contact: 'Bob Jones', Phone: '413-555-1212', City: 'Boston', State: 'MA'}, {Company: 'Allied', Contact: 'Jane Smith', Phone: '617-555-3434', City: 'SanFrancisco', State: 'CA'} ]; public function validateData(event:DataGridEvent):void { Alert.show(ObjectUtil.toString(event.reason)); } ]] /mx:Script mx:DataGrid id="myGrid" dataProvider="{initDG}" editable="true" itemEditEnd="validateData(event)" mx:columns mx:DataGridColumn dataField="Company" editable="false"/ mx:DataGridColumn dataField="Contact"/ mx:DataGridColumn dataField="Phone"/ mx:DataGridColumn dataField="City"/ mx:DataGridColumn dataField="State"/ /mx:columns /mx:DataGrid/mx:Application
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Re: [flexcoders] Problem closing pop up on datagrid cellpress
Thanks Manish!!! That seems to work. I wnat to use cellPress because I have an HR application that allows department contacts to request specific forms for employees based on department, type of action, exempt / non-exempt, etc... So when I ask for an employee ID number, I need to have a mechanism that allows them to search for the ID. I've decided to use a pop up and allow for search of Name, Job Code, Position #, Department, etc... The results of the search are returned in a DataGrid. Upon selecting the desired employee, I want the pop up to close and return the selected employee to the main app. I could allow them to select the employee in the datagrid and then click a continue button or something, but using the cellPress I think makes more sense. If you have any ideas on a better way of doing this, please let me know. Robert [EMAIL PROTECTED] 03/02 12:13 PM Robert Moss wrote: If you use the buttons, the window closes and you can hit search again to get a new window, however if you select an item in the datagrid the window closes, but you can not select the search button again to get a new window, ultimately everything on the main app freezes up. I don't know what's happening, but uses doLater() seems to fix it. cellPress=doLater(this, 'deletePopUp') I wonder why you'd want to close the window on cellPress though. Manish Yahoo! Groups SponsorADVERTISEMENT Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Class Diagram for Cairngorm?
Does anyone happen to have a class diagram for Cairngorm? As a coldfusion programmer brand new to Flex/AS/Java, Iunderstand the basics of what Cairngorm is doing and have been able to create a few simple appsadding my own views and events, but it's still pretty much a black box. I'm ready to get under the hood. Also how exactly is Cairngorm pronounced. Thanks, Robert
