Flex :: Initializing A Collection From MXML?
Feb 3, 2010How does one initialize a collection instance from MXML in Flex/Actionscript?[code]...
View 1 RepliesHow does one initialize a collection instance from MXML in Flex/Actionscript?[code]...
View 1 RepliesHow do I write a combination of XML declarations and Actionscript classes such that I can initialize each of my three lists from XML?
note that I am not trying to populate a Flex UI element (such as a DataGrid) with the various number-name pairs. I'm just trying to read the data into a plain old vanilla collection. (Once I've got my collections initialized, I can populate DataGrids or whatever at my leisure.) I can't find any documentation of how to address this super-simple case. The documentation all assumes that I'm trying to do something much more complicated, such as accessing a remote database, which confuses the issue tremendously.
LinkeSetFx has its own CollectionEvent, but I don't know how to map the LinkedSetFx event to mx.events.collectionEvent(I want use it in ComboBox). LinkedSetFx is in AS3Commons-collection framework.Here is the url, choose the as3commons-collections-1.0.0.zip, you'll find LinkedSetFx in srcorgas3commonscollectionsfx
View 1 RepliesDoes MXML get compiled down to as3 and then converted to flash bytecode? Also, is there a significant performance penalty to compiling mxml vs compiling as3?
View 3 RepliesI am working on a custom Flex 4 component which is an aggregation of two existing flex components. I would like to be able to specify my own custom properties for the component as well as access the existing public subcomponent properties via MXML. For instance I might want to adjust the font color or style for the label and text input. toy component which aggregates both a label and a text input:
<?xml version="1.0" encoding="utf-8"?>
<s:Group xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[code]....
I am trying to override a Button class, i have a few properties which i wish directly initialise with the mxml description of the component, like :[code]which function is triggered ( in order to override it ) when all properties with mxml description is fully initialised with their values ?
View 1 RepliesWhen I get a collection back from the service tier, I create an ArrayCollection and apply a sort. When I add an item to the collection later on, the sort is still in place? It seems to be the case. I thought I was only sorting it once, not applying a sort that will stick??Here is the method for adding an item:
private function onAddNewClick():void
{
var fileTemplate:FileTemplateDetailDTO = new FileTemplateDetailDTO();
[code].....
What I'd like to do: create an MXML component with some children, then extend it via MXML to create a new component with more children, without losing the original set.In other words
create a component bc.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:BorderContainer xmlns:fx="http://ns.adobe.com/mxml/2009"
[code].....
i have defined some functions in a component mxml file let us say addbutton() now i want to call this function in main mxml file.
View 2 RepliesIt seem to be buggy for 2 situations, I declare a timer for the socket
[Code]...
In certain situation, NativeProcess will hang itself too, this lead me to wonder if anyone encounter the same issse?
main.mxml
[Bindable]
private var _dp:ArrayCollection = new ArrayCollection([
[code].....
I am creating a flash object that does some heavy image lifting. What I am looking to do is load many flash objects onto the same page to take an image, modify it, and display it within the flash object.The problem I am running into is that when I try to add 100 flex objects to the page, the browser freezes as it tries to re-load/initialize each instance.Once they are all loaded, the processing of the images goes by quick.Does anyone know how to duplicate the flash piece without having to reload everything?
View 2 RepliesI have three lists and a button. Depending up on the selected items in first two list and after clicking the button I have to display the items in details list.
-In first list I am displaying names of employees
-In second list displaying managers names
-Then if I select one employee name and one managers name then after clicking button corresponding employee and managers details should be displayed in the third list.
The problem is with initializing the details list and dynamically changing it.
In a current Flex project, i have an issue where a certain child component must be initialized and ready when the user clicks a button. the button is a mouseClick Event.
//mouseClick Event
protected function tableSearch_searchClickHandler(event:MouseEvent):void
{
[code]......
A Flex components values are initlized by init methord. In an application flow, How to refresh a mxml component data value ; as init is callled at the start up it self only.
eg. of mxml componet may be as simple as button label or text as complex as repeater whose data provider is a web service ( means a fresh quesy should be made to pull the data and refresh the dataprovider of repeater )
suppose i have 3 buttons(for example say, productin, marketing, sales ) on my main.mxml..once i click on one button it should take me to abc.mxml page with production data, once again if i click on second button it should take me to the same abc.mxml but with marketing data. same as for 3rd button also, how can i achieve this ?
View 2 RepliesIn 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've been trying to create a custom mxml component that extends another custom mxml component (i.e.MyMXMLComponent -> BaseMXMLComponent -> Group). I've been reading that trying to add visual children to MyMXMLComponent caused error with Flex 3 but that's no longer the case with Flex 4.
What I want to know is whether this is a supported/fixed/documented feature of Flex 4? or just some undefined behavior in Flex 4 that may get changed with future updates?
if this is supported and documented feature, does anyone have link pointing to adobe document stating it as such?
This is a project I'm working on for a simple demo tutorial application in Flex. I am using mxml pages. You can see to the left that I will have my main application and then other mxml files (In the Examples Package) as the examples that will be loaded into the main application mxml. How can I dynamically pull the value from the object in the list to load the child mxml file into the container that I have further down in the application?
View 1 RepliesI have a method in CustomPanel.mxml and I need to use id which is available in Main.mxml. Below is my sample code
Main.mxml
<local:CustomDivideBox id="div1">
Custompanel.mxml[code]....
I would like to include an MXML file in my MXML file in the same way you can include an external file in AS3 using the include directive. Using the include directive brings the code from the external file into the original file at compile time placing it in the same scope. For example,
Application.mxml:
<Application>
<source="external.mxml"/>
[code].......
Does anyone know an Actionscript equivalent of the javascript getElementsByClassName.
What I would like to do is add a custom 'stylename' to various components which I can then use to get a collection of these objects and therefore process their visibility property.
The idea is I want to hide various components based on what roles a logged in user has - I just want to make this flexible by adding an array of rolenames to a custom property or use the stylename property on a Canvas or Panel etc.
I have a collection in Flex and I have sorted it by a date field, so the latest elements appear first in my view.
In order to do this I have applied a sort field like so:
var articleSort:Sort = new Sort();
articleSort.fields = [ new SortField('published', false, true), new SortField('id', true, true)];
articles.sort = articleSort;
articles.refresh();
Now I want to be able to use a cursor to findFirst() in that collection based on the id. However in order to do that I have to also pass through the published date in the findFirst() method. This is a real pain as I don't have the published date at that time, (or it's expensive to get).
articleCoursor.findFirst({ published: modelLocator.articles.getArticleById(event.newArticleId).published, id: event.newArticleId });
As you can see I am having to get it from the modelLocator in my application, and basically look up the item...
Ideally I would like to pass a wildcard though for the date in the FindFirst() function, as the id is the only thing I care about when searching. However it seems it Flex I can't do that.
The other option that occurred to me is to resort the collection before searching, but that would cause my view to re-render (as it's bound to the collection) on the collections refresh event. Plus it seems rather silly to have to resort in order to search.
For example in Java you can do:List<Person> where Person is the object type.In AS3/FlexArrayCollection which takes any object type. Is there any way to create a list/collection of declared objects in AS3/Flex (or is it impossible due to weakly typed language)?
View 2 Repliesi 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 RepliesI am looking to subclass RemoteObject. Instead of:
<mx:RemoteObject ... >
<mx:method ... />
<mx:method ... />
[code].....
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
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 Replies