Flex :: Set If A Node Is A Branch Or A Leaf?
May 24, 2010
I have a tree being populated by an array collection. I don't have control of the data in the array collection and even when a node has no children it still has a "children" property that is causing my tree to treat every node as branch. I can do a simple check on the length of the array in the children property. If this is 0 I need the tree to display the node as a leaf, no disclosure icon. Any thoughts on how I can achieve this? It would be nice if there were a branchFunction like the iconFunction and labelFunction.
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Sep 24, 2010
I've created an mxml page that displays a tree control, however the data is only being displayed as branches. Even items that are leaves are being displayed as branches.
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
public function init():void {
var item:Object;
var array:Array = new Array();
[Code] .....
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Jan 14, 2010
I have an AdvancedDataGrid tree with a ArrayCollection as its dataprovider. Now, for instance, i drag a leaf from one node to another node. To catch the event I'm adding a Listener to dragComplete.
[Code]...
My Problem: I want to know the new node where the leaf was dropped. Actually i would have expected that in the event there is a property like dropParent. This is not the case.
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Mar 14, 2012
Introduction: I have a flat ArrayCollection of object's, which i group to create the dataProvider for an AdvancedDataGrid. In this AdvancedDataGrid i have different branches representing different type of tasks. I want to conditionally change the icon for the leaf nodes in the AdvancedDataGrid based on a date field stored in each object.For this purpose lets say each Task object contains an id and an updatedDate (Representing when the task was last updated). If the task has not been updated in the last five days (updatedDate+5 < today) the icon of that leaf node(Task) should be red, in constrast to the opposite the leaf icon in the AdvancedDatagrid should be green, e.g. like the image below. In this case task 35 has not been updated in the last 5 days, while 13 and 39 have.
Question: How do i change the leaf icons in the ADG based on the updatedDate of the underlying object? I would think that i have to extend AdvancedDataGrid and override some method, but which and how?I have seen easy ways of changing the open and closed icons on the web, but no way of conditionally changing an open node's icon :)
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Mar 10, 2010
I was wondering if anyone had access to source code that would allow me to draw lines between objects. I have examples of the standard one line between 2 objects.
What I'm looking for is an example of how to draw a branching line. I.e. Starts as a line coming from an object and then branches out to other objects. I don't want to draw multiple lines from the same object because I need the objects to be related and the lines to have a settable property.
The added issue is that I want the number of branches available to be settable by the user. But if I can find code that dooes the branching lines, it probably wouldnt be too hard to tweek.
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Nov 18, 2009
I'm using the iconField property of the Flex Tree to dynamically set the icon that a node should use. This works fine for leaf nodes but for branch nodes it doesn't seem to respect my iconField and instead just shows the default folder node.
Here's a simple repro:
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
[Embed("assets/icon1.png")]
[Code].....
What happens is that icon2 shows for the East and West nodes but icon1 doesn't show for the Sales node. How can I get this to work?
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Jan 18, 2011
I have a tree im my mxml that uses a XMLListCollection as dataProvider. Itīs XML is like:
<list>
<conta nome="Plano de Contas" id="1">
<conta nome="Creditos" id="2" />
<conta nome="Vendas" id="4" />
[code]....
How can I make the node for, say, id==4 visible AND selected?
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Feb 11, 2011
I have added an event handler for itemOpening event for the tree component inside the handler basically ido myTree.selectedItem = event.item ; and then add the new data inside myTree.selectedItem.children.push(newData); But It do not show simultaneously instead I have to close , open the branch again to see the new data. I think I need to refresh something after adding new data but dont know what? below is the code but without the declaration , script tag etc
<services:DocumentService id="$document"/>
<s:CallResponder id="$newFolderAdded" result="$newFolderAdded_resultHandler(event)"/>
[Code]....
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Sep 16, 2009
I'm having difficulty getting checkboxes on only the leaf nodes of a tree.Before anyone links it, I've seen [URL] and this isn't exactly what I need. I don't want a 3-state checkbox system including both branch and leaf.I understand applying the checkbox item renderer to a data grid but not on a tree.
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Feb 7, 2010
i have TileList from which i'm dragging some stuff(image) to Tree (something like dragging sounds into playlist in iTunes), but when i can drop this stuff, i see only underline, this mean i can drop it only under or above some leaf-element in that Tree. How can i force it to hide this black underline and highlight leaf-element to which i wanna drop my stuff.
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Feb 5, 2011
Is there a way to enable dragging of only leaf nodes in a tree component?
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Aug 31, 2010
i gave the tree an ArrayCollection as dataprovider that i pulled from the database, and it contains the children, but the discloser icon wont disappear on an object that doesn't have a child.i think the problem is that the renderer doesn't recognize the leaf child, wich contains a children array of length 0, or null......
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Dec 14, 2008
This is one of the oddest errors I've encountered from the flash compiler. It spits out a bunch of compile echo text like:
Code:
- 49:pushbyte 0
stack:
scope: [global Object$ AS3.script::Parser$] AS3.script::Parser
locals: AS3.script::Parser? int Boolean int String? *
[Code] .....
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Aug 27, 2011
In a complex XML where I dont know the leaf node names/or the level of depth they are, how could I extract all the leaf nodes inside a XMLList variable directly?
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Feb 6, 2011
I have a file that I've been working on, and i want to take what I have and modify it heavily, but I want to keep the original; if there was a 'duplicate' project command I would do that, but I don't see one, and wondered if there might be a way to keep it all in the same project for tidiness purposes. I'd just copy paste the directory myself but just want to make sure I'm not missing some functionality.
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Nov 6, 2010
xml stuff in action script is so... non-intuitive.. cubersome I can compare it to the xml libs that I used in playground sdk, popcap and other .. tinyxml.. ....
I' m trying to make that simpliest thing for about 2-3 hours.. + reading books.. and still can't do it..
what I want to do is:
<xml>
<Weapons>
<Weapon id="canon" rechargeTime="200" impulse="30">
[Code].....
how do I read the all "Weapon" objects listed inside Weapons.. NOTE: I dont want to use the method.. that returns "Weapon" from all over the xml... cause I probably want to list weapons in other sections for other purposes
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Sep 21, 2011
i have a question whether we can create a new xml node in as3 node containing dynamic value inside.....
as like if i want to get like..var newNode:XML = <IMAGE FULL="fullimages/3.jpg"THUMB="thumbnails/3.jpg"/>
where the images are dynamic values...
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May 26, 2005
I thought this was going to be easy! I would like to search an XML file for a particular data set i.e. set of nodes depending on a passed variable. However, storing a subset of my XML file via Code:var gallery = this.firstChild; and then searching 'gallery' as you would an array-using a for()-doesn't work since this.firstChild isn't returning an array
Code:
<gallery>
<collection title="Christmas 2004">
[code].....
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May 19, 2008
I'm making a portfolio site in Flash. It's my first complete Flash site, but I know the basic stuff and I'm trying out some actionscripting. So far I have the site itself, with working navigation and a preloader. But I want to have a animation of falling leaves in the preloader, so people have something to look at when the wait for the site to be loaded. It also fits with the general "feel" of the site. I've been trying to do this by using the Falling Snow v2 tutorial from Kirupa, but something is unclear to me. I inserted the movieclip snow_mc, made the leaf, converted it to another movieclip snow, gave the instance name for this clip snow(I'm just following the tutorial, that's why the leaf is called snow and all) copy-pasted the first actionscript part of the tutorial on the first frame in the snow-mc clip, but then I don't know where to put the rest of the AS. The tutorial says to select the snow clip and press F9 and paste, but to do mean on the first frame in the snow clip? Because I keep getting these errors:
**Error** Symbol=snow, layer=action, frame=1:Line 1: Clip events are permitted only for movie clip instances
onClipEvent (load) {
**Error** Symbol=snow, layer=action, frame=1:Line 16: Clip events are permitted only for movie clip instances
onClipEvent (enterFrame) {[code].....
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Feb 11, 2011
I have a tree with nodes , and a delete button , first user select the node and click this delete button , I want this node to be removed from the tree , Its not XML , every node in tree is of type Object
{label:'folder',children:[{label:'file1'}]}
I tried delete myTree.selectedItem (but compiler wont let me do it) also tried myTree.selectedItem = null (just unselects the item)and also how can I access reference to parent object of myTree.selectedItem ?
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Aug 20, 2010
I am currently developing a dynamic LineChart in FLEX 4.I am implementing a Tree control next to my LineChart, which will filter the LineChart dataprovider and lineseries. The tree control has several branches and ultimately 5 children (leaf nodes) at the bottom of the last branch.I need the leaf node/children to be displayed as checkboxes inside the tree control.As I understand,this will require overrides in the TreeItemRenderer class.This is where I am a little confused on how to implement that.Currently I can distinguish between leaf and branches using this code, in my main MXML component.I added this because it may be helpful to some beginning FLEXdevelopers, such as myself, who cannot easily find this functionality documented well:
private function treeClick(e:ListEvent):void {
_selectedItem = Tree(e.currentTarget).selectedItem;
if(mainTree.dataDescriptor.isBranch(_selectedItem)) {[code].....
I am looking at the TreeItemRenderer override class from the following example here: In the example, they override the "createChildden" super function to add checkboxes to the tree control.My question is, can I override the createChildren function directly in my MXML component, and not have to use an entire class file to override this functionality? Must I re-invent the wheel to do this?Also, how can I distinguish that my treeItem is a leaf node and not a parent, in the override function? I only want to add checkboxes to the leaf nodes, how can I differentiate? The following example adds checkboxes to all branches and leaf nodes, but I want to add checkboxes only to leaf node/children. How would you approach that?
override protected function createChildren( ): void
{
super.createChildren( );[code]............
Here is my tree tag:
<mx:Tree id="mainTree" dataProvider="{treeData}" itemRenderer="TreeCheckBoxItemRenderer" labelField="@label" showRoot="false" width="100%" height="100%" itemClick="treeClick(event)" />
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Jun 7, 2006
I've got a tree component which works great, but I'm trying to add an item at a particular location (immediately after the item they select) into the tree. The problem is that I'm trying to add an item within a branch. I'm using myTree.getDisplayIndex(myNode) to get the position within the tree, but it gives the location relative to the entire list, but I need to get the position relative to the parent (which is what myNode.parentNode.addTreeNodeAt is trying to write to)...
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Nov 2, 2010
I have an XML object like this[code]...
but how to add the id attribute as the 'data' field of the dropdown so when an item is selected, it returns that field?
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Sep 1, 2010
I've got some xml:
var xmlData:XML =
<1stNode>
<buttonID>first child node value</buttonID>
[Code]....
Then I want to read specific node value based on a value passed to a function. .
var buttonID = new Button;
var imageID = new Image;
var labelID = new Label;
[Code]....
I'm don't know how to get the value when node name is dynamically changed.
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Jun 24, 2008
just trying to get straight how this works. Say I create some XML like so:
ActionScript Code:
var sample:XML = <sample>
<items>
[code]......
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Jan 3, 2011
How do I change from <forward></forward> to <backward></backward> without delete in actionscript?
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Jun 26, 2009
Why does the trace in the loop below return false for every iteration, even though there ARE nodes named with 6 of the 8 possible values??? This only happens when I have a namespace. Is there some other way to check for the node values???
[Code]...
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Sep 10, 2009
[Bindable]
private var company:XML =
<list>
[Code]....
The Particular code adds a new node to the operations, but i want to add a node any item i select.
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Jan 9, 2010
I'm having trouble accessing the value of the root node of an XML variable in flex. For example:
[Code]....
I can change the "Type" attribute above with X.@Type="xyz"; But how do I change "Content123" to something else? If the xml document were longer/deeper, I could say something like X.Entry[11].Cost=2.22; But what do I say in this case? Obviously X="Content456" doesn't work...
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Jan 25, 2010
I have looked at some of the related posts on this subject but i can't figure out how to solve my problem. I guess it has something to do with the fact that its monday.Well, here goes. i have a XML object containing:
<root>
<page>
<text>[code]....
And i want to replace only the label node with a new one. i put the new ones in an XMLList but now im stuck at how im supose to replace the actual nodes. This is how the XMLList looks like:
<page>
<text>
<style properties=""/>[code].....
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