Flex :: Converting Nested ArrayCollection Elements To Another Class?
Feb 1, 2011
I have an ArrayCollection and each element is an instance of the TreeNode class (a custom class made by me) that has a "children" property which is an ArrayCollection of more TreeNode elements. That way, I have a tree of elements in an ArrayCollection structure:
tree = new ArrayCollection([
[new TreeNode(param1, param2, new ArrayCollection([
[new TreeNode(param1, param2, null)],
[Code]....
But my problem is: I need to have the same "tree" structure (it doens't need to be the same variable) filled with instances of another class. How can I achieve that?
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Similar Posts:
Mar 19, 2010
I have an ArrayCollection as mentioned below.
private var initDG:ArrayCollection = new ArrayCollection([
{fact: "Order #2314", appName: "AA"},
{fact: "Order #2315", appName: "BB"}[code].....
I want to populate a ComboBox with UNIQUE VALUES of "appName" field from the ArrayCollection initDG.
<mx:ComboBox id="appCombo" dataProvider="{initDG}" labelField="appName"/>
One method I could think is to loop through the Array objects and for each object check and push unique appName entries into another Array. Is there any better solution available?
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Jul 9, 2010
i have a collection looking like this :arr.getItemAt(0).closet.clothes[0].color. the arr is an ArrayCollection data type..the clothes is an Array data type..when i try to bind this to an mxml component , i get a warning :"Data binding will not be able to detect changes when using square bracket([]) operator. For Array, please use ArrayCollection.getItemAt() instead."this is not possible as the Array class has no method getItemAt().
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Sep 1, 2010
i am currently working on a datagrid, where i get the dataprovider as an arraycollection...now, i have to click a button to delete an item from the populated datagrid..but i want to also automatically delete this item from the xml document as well. as such , i would need to pass in xmllistcollection as the dataprovider but i do not know how to convert my arraycollection to xmllistcollection..
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May 19, 2009
I have an XML file that I have imported into an ArrayCollection. I can get all child elements of the XML (ArrayCollection), but can't for the life of me get to the attribute. Where does the array collection put it?
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May 29, 2009
I am having issues with this method. It's supposed to loop through stage elements (news feed) and check if the item is checked/enabled. If they are, it should add them into an array ratingAC, which will keep track of the number of elements that are rated, and the rating total. The problem I am having is that only one item is added to the total even if multiple are selected.
Archive Vars......
[Bindable]
public var newsDB:ArrayCollection = mx.core.Application.application.newsDB as ArrayCollection;
[Code]....
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Sep 4, 2011
I have a big ArrayCollection variable. I want to filter it serveral times and each time assign the filtered result to a different ArrayCollection variable.
So if it has let's say people, fruits and cars. (for illustration purposes) I want to first filter it to only show people, assign the result to a people ArrayCollection, then filter it to show fruits and assign it to a fruits ArrayCollection and so on.
How can I do that? Not the filtering, but the assignment after filtering. Or is it faster to instead run a for-loop through the big ArrayCollection and just add each item into the corresponding smaller ArrayCollection?
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Jan 28, 2011
I am using Flex 4 and for whatever reason I cannot get the following code to work which happens inside of a ListEvent handler for a dataGrid:
_tempRule = DataGrid(event.currentTarget).selectedItem as Rule;
Rule is a custom class, and the above code always returns null. The dataprovider for the datagrid is an ArrayCollection. If I try to wrap the above code to make it like the following:
DataGrid(event.currentTarget).selectedItem as Rule
I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert Object@e15a971 to com.mycompany.arcc.business.Rule
Now I know I have done this before with native Flex classes like Button, etc, but it my case it will not work. Here is the Rule class:
package com.mycompaany.arcc.business {
import flash.utils.describeType;
import mx.collections.ArrayCollection;
[Code] .....
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Oct 27, 2009
I'm new to Flex and am using TileList bound to an ArrayCollection. The array collection is empty at load time, and then updates with the results from am HTTPService call. The problem is that the item renderers aren't being rendered as expected, I'm guessing because there was no data when they were first rendered at load time. Here's simplified example:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" >
<mx:Script>
[code].....
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Mar 4, 2011
I'm working on a simple task/calendar tool where tasks can be added dynamically to a canvas. Here is the main application as defined in Main.mxml, which is essentially just a Canvas and a button for adding a task:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Canvas id="MainCanvas" borderStyle="solid" width="300" height="300">
[Code].....
The problem is that when I add a Task instance to the Canvas, the children (the button and label) don't appear. I tried setting creationPolicy="all" on both the Canvas and the BorderContainer, but it still didn't work. I've read a bunch of posts about people having issues accessing members of their class before the class is fully loading, but all I want to do is SEE that Label and Button show up inside the BorderContainer.
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Dec 30, 2010
I have seen afew answers to the problem i am having now but mine is that of a nested one.
I have an xml looking like this:
>
<em>
<type xmlns="http://www.sitcom-project.org/sitcom" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
[Code]....
now, how do i access the element of the implemented_with node?
ofc i could access the xmlList this way:
namespace ns = www.sitcom-project.org/sitcom;
type.ns::model;
but now, how do i access the implemented_with node in the model xmlList? i tried type.ns::model.implemented_with, but didn't work.
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Apr 3, 2011
After quite some time I finally decided to pick up Flash again, this time taking the OOP route. I'm a bit rusty though, so I'm stuck on something pretty basic.Here's my Layout of relevant objects and scripts:
Stage > gunAmmo (TextField)
Stage > player (MC) > pistol (MC)
........ > player.as > pistol.as
As you might've guessed, what I'm trying to do is set the gunAmmo.text property from within my pistol class. I've tried using MovieClip(root).gunAmmo, stage, etc., but neither seems to be working. I sort of get why, but I don't know what the correct syntax is. (And yes, the TF's instance name has been set correctly.
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Nov 2, 2009
I am developing one small demo application. In that i have created one action script class named City which has two fields. cityId, cityName and i have also mapped this class with my backend java class City using tag RemoteClass. at Java side City class contains same fields as in actionscript city class.
[Code]...
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Sep 21, 2011
In our project implementation we are passing ArrayCollection back to Java from Flex. And we are getting exception "sying blazeds cannot create class mx.collections.ArrayCollection"
This problem is coming when using BlazeDS 4 and Spring 3 at Java side.
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Oct 7, 2011
I have a advanced datagrid and populating some data by using arraycollection. And i am filtering the arraycollection, the arraycollection index got changed.
Arraycollection:- [0] - name: abc
[1] - name: hello
[2] - name: hello1
[3] - name:hai
after filtering the arraycollection as 'hell' , the array collection is displaying like the below:
Arraycollection:-
[0] - name: hello1
[1] - name: hello
Can i know the reason why the index got changed after filter it?
* no server side code for filtering. it is only flex side filtering.
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Feb 9, 2011
i have a class which id like to run from my timeline. How can i modify the class?
if i rename
ActionScript Code:
public function
[code]...
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Feb 4, 2011
i have a problem using the itemRenderer functionality. When using an ArrayCollection the visible Data in the DataGrid using the itemRenderer will be rendered just fine. But if i start scrolling the entries are repeating in the cells using the renderer. The cells are not filled with date according to the id. What mistake i'm doing here.
I read a lot of the explainations like:
[URL]
here is the code for the set data function (itemRenderer is extending HBox):
override public function set data(value:Object):void {
_data = value;
if(data!=null)
[code]....
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Feb 15, 2011
This will probably seem a moronic question, but I've only been using Actionscript for about a week... Either way, I've written a very long and complicated (8500 lines w/ autoformat) code for a game I've decided to program. The game is functional, the AI can respond to outside inputs etc, and I know reasonably well how to use SharedObjects.
What I'd now like to do is make a menu system surrounding my game that can pass variables in and out of this existing program. The program is currently in the shapely form of a Document Class, meaning the code runs on load. I'd prefer if there was a way to simple make the code run upon being called. How would I best do this? The only inputs presently used are keyboard inputs...
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Mar 12, 2011
I am trying to create a small game that plays videos when you click a button. The following code works effectively;however, it is placed on an action frame and I would like to convert it into a class so that later on additional functionality may be added.I am more of an animator then a programmer but am trying to learn so that I can make games.[code]
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Feb 17, 2009
I've been wondering if it is possible to convert an object acquiredby a getChildByName() function to another class?Let's say i have a library item designated as MovieClip and it is a part of some "sprite sheet". Now, when i need some sprites for my program i create a new sprite sheet instance and then i take sprites from it using the getChildByName():
Code:
sourceSheet = new UISpriteSheet();
someObject = sourceSheet.getChildByName("someObject");
[code]......
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Apr 20, 2010
the applicable differences between an ArrayCollection and a Vector in flex? I'm unsure if I should be using one over the other. I saw that Vector is type safe and that makes me feel better, but are there disadvantages?
public var ac:ArrayCollection = new ArrayCollection();
versus
public var vec:Vector.<String> = new Vector.<String>();
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Sep 14, 2011
I have imported a SWC into my actionscript project. It includes many different movieclips that I can access in my project. My question is this: How can I create a custom AS3 class that I can use to add functions and properties to my movieclips?
For example I have a movieclip with a linkage name of LevelButton. I tried creating a class that was the same name but they didn't seem to go together.
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Aug 9, 2004
I'm looking at the XML class. I would like to be able to access elements by name and the order they came in.
For example, if an xml document is structured like this:
<a>
<b>info</b>
<d>something</d>
<b>more info</b>
</a>
[Code]...
xml_object.childNodes.length will return the number of childnodes there are. But I don't see a way to get at the number of childnodes of a particular type. This will not tell me, for example, how many childnodes of type "b" that "a" has. I can't see Flash XML support being this sparse. Is there a built-in way of accessing the nth child of a node of a particular element name or am I stuck with accessing it only by number.
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May 29, 2011
I have an array, which are the literal names of class references. Eg. in my main class I have
var page1:PageOne = new PageOne();
var page2:PageTwo = new PageTwo();
var page3:PageThree = new PageThree();
[code].....
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May 26, 2011
Well I finaly found a script that's pretty easy but interesting to use.Then I thought, why not help the community out and try to convert it into a class which would be very dynamic and easy editable.Well I figured out how to draw a dynamic mask, but after that I can't seem to figure out how to implement the mouseOver/imgPanning into the same piece of code.[code]The commented section is the code that makes the img pan, but I cant seem to figure out how to implement this so people can still use the drawRectangle function.
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May 8, 2011
I have the following scenario:i have a MovieClip and I created a linkage for it named A.
[code]...
what is allowed? how can I resolve the issue ? update ok this is an exact scenario but a more simple one that I still wasn't able to resolve. The original scenario is that I have a MovieClip called user_bg_me that has a linkage named user_bg_me that extends user_bg_genericthat extends 'MovieClip` inside user_bg_generic class i want to be able to modify elements inside the movie clip itself. using super.element_name provides an error that the property isn't found.
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Nov 28, 2007
I'm trying to link a clip to a class, and it goes well until I try to access MovieClips or TextFields placed on the stage within that clip from code in the class. My code is below; there is a TextField called output_txt on the stage within this clip.
class Main extends MovieClip{
public function Main() {
//trace("123"); <--if I replace the line below with this, it traces nicely
output_txt.text = "123";
stop();
}
}
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Jul 24, 2009
In Flex, it's easy to convert the XML to Object and to ArrayCollection by using var decoder:SimpleXMLDecoder = new SimpleXMLDecoder(); decoder.decodeXML( xml );
But is there a good way to convert ArrayCollection to XML.
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Sep 22, 2009
I currently have an arrayCollection in Flex and I want to sent it to PHP (Zend_AMF). According to the Zend_AMF wiki, sending an arrayCollection over directly will force Zend_AMF to cast the arrayCollection as an object which is no good. I'd rather have an array of my models. I assume the best way would be to convert the arrayCollection to an array in flex and then send it over. Is this true, and if so how would I do that in Flex 3? If you have a better recommendation,
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Oct 21, 2009
Is there any way in Flex where in we can sort an arraycollection based on strings .I have a dataprovider with strings like "Critical" "High" "Medium" "Low" where in I need to sort it in such a way that I need Critical to be displayed on the top and next High , Medium and Low follows.
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