From what I know the whole idea behind having collection classes is introduce extra wrapper methods which will be handy for developers.
Then why does ArrayCollection in Flex not seem to have some methods that array has.
ArrayCollection does not have a copy, concat, join or splice methods which return a new array so we need to do the copy manually?
I have an array, crewPositionsAC that contains a list of position abreviatations - EP, PR, DR, WR, and so on. These positions are read in through an XML file each time my flex application loads. Also being populated from an XML is a project. Within a project, there are positions (a student assigned to a type of position listed within crewPositionsAC). These positions are not necessarily in the correct hierarchy order dictated by crewPositionsAC. I have all the positions within an ArrayCollection (positionsAC) with the following structure:
positionsAC (arrayCollection)
[0] = Array
[0] = startOffset
[1] = numDays
[code].....
Then, the user can click a button to add another position. When the "Add Crew Member" button is pressed, the user is presented with a list of possible positions to add. Currently, I simply add another array to positionsAC. This results in the recently added crew member to placed on the bottom of the list. I need to take positionsAC and reorder it based on it's [2] item (role) based on the hierarchy defined in the crewPositionsAC. crewPositionsAC has the following structure:
crewPositionsAC:
[0] = EP
[1] = PR
[2] = DR
[3] = WR
* continue until all possible position types are listed
Currently my code is this[code]...
What I am trying to do is splice the array at the right time in my code so it will disappear from my array- and the affect would be the returnRandom() function won't return that same item ever again. [url]...
Is it me or the indexs in the array are not valid after using splice?
Code:
var arr:Array=new Array(3);
arr[0]=porsh;//car objects..not implemented here just for exemple
[code]....
i am loading in and xml file based on the structure below...
[Code]...
So what i am trying to do is to Splice the array into 2 parts, all the question ID's that are A and all that are B for for example are placed into 2 new array's like so:
[Code]...
but i am having problems with the code below trying to splice them and seperate them,
[Code]...
I am working on a basic game in order to practice my AS3 coding skills. The point I am at is that when my enemies (Falling vertically down) touch the bottom of the stage I want to make all enemies in all of my arrays be removed. Now, the code below works perfect for that description of what I want, but it does not remove everything at the same time. Instead it does not remove all of them at the same time, and it's very noticable. As in there is about a 3-4 second gap between when the first dissapears and when the last does.
So will I need to completely optimize my entire project, or is that any way I can do this process that is more efficient? Also what are your thought on just changing all of the enemies y coordinates to -100 or something at first, and then removing them while they are off the stage?
[code]...
have an array that's loosely packed - is there a way to splice (or otherwise cut out) an object from the array?
View 1 RepliesI'm trying to remove items from an array but its not working like its supposed to.Here is my code:
for(var i:uint = 0;i<OrderModel.getInstance().orders.length; i++){
if (OrderModel.getInstance().orders[i].time == hour){
OrderModel.getInstance().orders.splice(i, 1);[code]....
it deletes all the items but 1. I allways have one item left wich should be deleted but it isnt.
I am trying to remove an element from an array by using splice like:
Code:
myArray[1].splice(2,1);
This works & finds the element I am looking for but it doesn't really remove the element but it will just insert a blank object instead. Am I doing something wrong here. How would I "really" remove the element, meaning that the Array would become shorter?
is array.splice equal to displaycontainer.removechild?
View 1 RepliesI have an unordered ever-changing array that looks something like this:
12,23,1,4,11
I just want to basically tell the code to remove a specific item, let's say "23". But since the array is constantly changing length, I can't use splice.I also can't have any gaps, such as "12,,1,4,11". It must return "12,1,4,11".And on a related note, can I then check if this array has the same content of numbers as another array (and do I have to put them both in numeric order before it can perform the check, or doesn't it matter that they're not in the same order, as long as they have the same contents)?
I am trying to replace an Object inside my nested array (colArray) by using splice, the object acts as my player and will need to maneuver around the Array it's in. The Problem is splice doesn't appear to be showing anything in return, it comes up with an error saying: Cannot access a property or method of a null object reference.What am i doing wrong ? And how would i go with moving my playerObject around the array?
var gridContainerMC:MovieClip = new MovieClip();
var gridSize:Array = [col,row]; //Rows, Columns
var gridArray:Array = new Array();
var col:Number = 44;
[code]....
I have an array with many values pushed into it (happen to be names of objects). I am using a for loop to check all of the objects (by index number) for collisions, etc. Periodically, depending on a condition, I want to remove the currently checked object's name from the array list. I noticed that there is a problem if I immediately splice the checked name from the list. Namely, the list gets shorter, which is what I want, but not until I'm done checking all objects. Is it a good idea to solve the issue by incrementing i-- after the splice? I do this so that the object that used to be next in the list doesn't get skipped.It seems to work very well but I want to know if this is a lame/problematic solution and if there are any better ways of dealing with it
for (i=0;i<myarray.length;i++){
var ob=myarray[i]
//any old condition
[code].....
[Code]....
so my array is longer but u get the point. i want it to whenever i click on any letter, cause they are all on buttons, the one i clicked dissapears. i dont know how to work splice with the "i" variable,
In my flex application im using two datagridfirst datgrid is for items collectionssecond is for bank details.if i click one row in first datagrid (which has the items collections)...a unique code is taken from the grid(which is primary key).then, i have to select two or more banks using itemrenderer checkboxes in second datagrid(which has the bank details)ow, have to bind the bank details(one or more banks) with that one primary key in first datagrid. to an single array collection... and have to show it in another new datagrid(thirdone)
View 1 RepliesI have a drag and drop game. You listen to a sound for exampl "bread" You proceed to drag that mc to a box. If it is the right object I want to remove that mc and splice the array so it doesn't choose that object anymore. However I have notices two things.
When I splice(0) a specific element - then nothing works. When I splice the cuurent indexed element ie: the last element to get right - it doesn't actually remove it from the array. I have highlighted the key code parts.
[Code]....
I have an array collection of strings and integers (which I have displayed in a data grid) and I am wondering if it is possible to export the array collection into an html table? or even a text file for the user to download
I found some pages that had an export to .xls files but I want to stray away from that for now.
While making my choice b/n Array and Arraycollection I get confused why whould I use one and why not another. I have read the theory in langref but apart from that is there some general advantages/disadvantages of one over the another that you have learned from your experience.
View 4 Replies/*
[Bindable]
public var rows1:ArrayCollection=new ArrayCollection([
['Google', [{Projectname:"1", Client:0},
{Projectname:"2", Client:1},
{Projectname:"3", Client:2},
[Code]...
How to compare two arraycollection [code]...
how to compare..if equal just alert nochange if not alert chaged
I have an application that takes some database info and shoves it into a datagrid, or chart. I've come across this error of having a single row and trying to use it in an array so I can use it in my app. Its come to my attention that its a pretty common problem that people face, but I don't seem to be able to get around it no matter what a try. My actionscript has a fucntion that trots of to the database via ASP, and returns the data in the event - as below (obv i've removed some stuff - load of calls are made to the mssqlQuery function - only the one I have trauma with is below)
[Code]...
i have created one array collection in flex.and i have my one XML file. Now i want to call that XML file into arraycollection
View 2 Replieshow do i convert XML or an XMLList to an arraycollection?
View 3 RepliesIn my app i am pushing data into an array collection. When I debug or trace the AC i get [object Object].
public var newsDB:ArrayCollection = new ArrayCollection;
then I add to the AC here.
if(archive.selected == true){
newsDB.addItem( {
title: titleText.label,
clickURL: clickURL.text,
[Code]....
When I debug, i can see that the items are in the AC, but as generic objects.
Im trying to populate a tree control with an external xml file brought in via arraycollection but i need to group the xml data to display in the tree Okay my external xml file is called parts.xml and it looks like this:
[Code]...
additionally what i intend is for the user to have huge tree of parts and they select a node at the partnumber level and drag an drop it on to a datagrid where all the other tags of the part gets displayed.
Ive tried and tried many things without any luck. even now im thinking maybe if i looped through the array-collection and created a new array just for the tree to get it to display the way i need it, then when the user dragged and drop a part onto the grid i would have code that would look for that part number in the original arraycollection and add it to a new array just for the datagrid... i still dont know how i would create that new array for the tree!! cause the xml data is grouped by partgroup and then grouped again by parttype before you get the individual part numbers
Is it possible for me to filter only a certain column in a arraycollection but still displaying the other values in a datagrid?
View 1 RepliesI have an array collection that I would like to limit to say 100 items. I tried setting up a filter function where the return was:return (myAC.getItemIndex(item) > 100);but the value was always -1. For whatever reason it couldn't find the item, even though the item is definitely there.I'm able to do this with a while loop:while(myAC.length > 100) myAC.removeItemAt(100);
View 4 RepliesI have two xml files, defect. xml and employee.xml. But the files havea common field but with different names in each file. I want both the files to be merged in to a single array collection.
The structure of my defect.xml file is:
<defectList>
<defect>
<revId>123</revId>
[Code]....
Now, if I give datafield as "employeeId" in the datagrid with defectList as dataprovider, I get the employee id of the corresponding Employee Name.
I've got an XML Doc loaded in. I've created an Horizontal List and referenced the arraycollection as the Data Provider. But what I need to do now is then pull the data out from that. I have 3 nodes / variables. They are id, title, thumbnail. But when I go to pull through the data as : {videos.title} Flex Builder gives me the Error - "Access of undefined property videos". Now I know full well it exists, as when I set the dataProvider to {videos} it pulls through the data without issue.
My code is as follows :
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="[URL]"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
minWidth="800" minHeight="600"
[Code] .....
How do I go about getting the XML Node : title and of course the thumbnail too?
Does flex allow empty, or missing, keys within an array collection? For example, would the following code be okay:
var myAC:ArrayCollection = new ArrayCollection;
myAC.addItemAt("hi", 0);
myAC.addItemAt("hola", 4);
[code]......