Actionscript 3.0 :: Way To Acces One Of The Nodes In The Tree And Trace The Data?
Sep 22, 2008
The problem is that a cannot acces the nodes in the tree using AS3 syntax. My guess is that the problem is nhe namespacing that is making it impossible. I have been sitting for hours trying to set namespaces or removing them, but i just cant get this to work. I can load the XML, but as soon as i try to walk down the tree i get no data output. Here is my actionscript so far:
var myNamespace:Namespace = new Namespace( "http://www.w3.org/2001/XMLSchema-instance" );
default xml namespace = myNamespace;
var xmlLoaderAvdelningar:URLLoader = new URLLoader();
[code].....
there is no way for me to acces one of the nodes in the tree and trace the data. To me the namespacing in the XML is very confusing, and i have no experience working with this kind of XML
For those unfamiliar with tree structures, tree structures are usually dynamic lists where every node has a pointer to two other nodes. They are arranged so it makes for faster searching and stuff and are very useful in programming languages that offer direct access to heap memory. Although I don't know if there would be benefits of making tree structures in AS would be of any help but I decided to have a go at it anyway. Since there are no pointers in flash I tried to just replace pointers to nodes with nodes themselves. Such things usually work in java I think because the language just automatically makes pointers for variables.
How do I get a Flex tree to display only specific XML nodes?
A sample of the XML data is below. Only the Grouper and Product elements should be displayed as branch and leaf nodes respectively; the Name elements should not be displayed. I can't use XSL or e4x to modify the XML as the Name elements' text is used as the label for the Grouper and Product tree nodes. Also, I cannot move the Name element to be an attribute as it needs to include a CDATA section.
It looks like using a custom TreeDataDescriptor is the way forward but I cannot find any examples of using one with XML.
I have a basic Tree built in Flex. The Tree works fine. I'm attempting to get a list of all of the visible nodes. I know there is a Tree.openItems, but that does not suffice because (for example) if you open all the items in your tree and then close the root, the invisible opened items are still counted.
private function openAllNodes(event:TimerEvent):void { //Alert.show(event.target.currentCount); var index:int =event.target.currentCount - 1;
[Code]....
In my project I want to show the video like growing flex tree. So I tried flex timer based to expand node one by one. But if I open the first node then automatically close second time. If there is any other way to expand nodes one by one then let me know.
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.
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.
I've spend hours searching for a way to put one paragraph of text in one tree node in Adobe flex. How can I do it? I created a simple tree view but the text is cut after the right border.
So I tried to create a tree renderer. In the renderer I specified width=100 and the text wrapped. But the height of the nodes was not being calculated properly, so the text over consecutive nodes overlapped and got messed.
working with flex 4 and implementing filtering using ITreeDataDescriptor.Filtering worked as expected like the following code snippet however, i am trying to create a on-demand type of filter where user would type in the search clause in a TextInput, and as the user types, the tree nodes would be filtered on the fly.my implementation now is have user click on the search button and then reapply the dataDescriptor then reload the data. A big problem is that the whole tree collapses after setting the dataProvider again.any suggestion on how the on-demand filter can be achieved?
var dataFilter:ServicePricingFilter = new MyFilter(); dataFilter.searchString = this.txtSearchKeyword.text; this.treeService.dataDescriptor = new MyDataDescriptor(dataFilter);
I'm using a tree control that I want to customize. The data items in the tree's dataProvider have a property name that should be used for labeling the node, and a property type that should be used to select one of several embedded images for use as an icon. The simplest way to do this is by using the labelField and iconFunction properties.
However, I wanted to get started with item renderers and open the door for adding more complex customization later, so I tried making my own item renderer. I extended the TreeItemRenderer class as follows and used it in my tree control:
class DirectoryItemRenderer extends TreeItemRenderer { [Embed("assets/directory/DefaultIcon.png")] private static var _DEFAULT_ICON:Class;
[Code]....
This code has no effect whatsoever, icon and label in the tree control remain at their defaults. Using trace(), I verified that my code is actually executed.
That is I want to hide the contact_person and list nodes.Deleting the nodes from the dataprovider cannot be done.So what i did was to create a custom tree data descriptor by extending DefaultDataDescriptor.Then override the getChildren method and applied a filterfunction to the collection returned by super.getChildren.The problem is when i hide the 'list' node I cannot have the child nodes to show up.So is there any way I can hide 'list' but show the children of 'node'?
Im using tree component and XMLConnector here.as far as i can see results in my tree (when testing my movie) it ouputs data thats loaded fom ext. XML file.But the problem is that it publishes [type Function] in the tree. no actual xml nodes are visible, just bunch of [type Function] ive also searched for info / tutorial how to publish actual xml data in the tree component but without any luck.So what should i do and how ?
How to physical write data on xml file... without using php? or if php must involve how to add data without opening a new window.
below, this doesn't write on xml file but it append without saving it on actual xml file?
..if i want to add a childnode/replace text node and save it..what all things i have to do? or what are the basic requirements to add data on xml file. I know how to retrieve data from a file, now that i have created a form and wants to add data. [code]...
I am loading data from xml file.There is 12 XML nodes (in this case)I don't want to show all xml data in Flash by default.I am attaching one button on the stage for every 5 xml nodes (depends how much data I want to show per one page, let's say 5)So every time user clicks on one of this buttons, the data from startIndex to endIndex of this button is shownFIRST: I have a problem clearing the attached data every time user clicks the buttonSECOND: I have a problem with the last button's endIndex variable. it should be 12 not 15 (in this case)
buddy im new in flash as3 im suffering some problem for 1 week i fatch data from xml and addChild of totel nodes of xml i want dynamic scroll bar im triyng.
This code filters out "steps" and "array" successfully. However, if I uncomment the "preDialogues" code to try and filter out preDialogues, the question node gets skipped entirely. I can see why this happens, but what can I do about it? Its been awhile since I've done recursion. I thought I could return some sort of combined list, or something, but I can't get anything to work.
I have been trying to populate a tree control via an httpservice that uses php to talk to a database. The queries work fine and the data comes back in the following format from php: echo "<root>"; echo "<topic>"; echo "<sectioncode>$sectioncode</sectioncode>"; echo "<children>"; echo "<labtitle>$title</labtitle>"; echo "</children>"; echo "</lab>"; echo "</root>";
Flex can see this and interprets the heirarchy fine unless i try to format the resultformat in the httpservce (if i do that it goes a little nuts). The results from the php query to the db come back as an ArrayCollection with each containing a "root->topic->sectioncode->title" type of structure (which is what I want). When I go and try to use this Arraycollection as a dataprovider for a tree control, it doesn't work at all. When I use the arraycollection as the dataprovider I get [object,object] for every row in the tree and there is no parent/child structure.
Ideally I would like the title to be a child of the numbercode, but when i try and format the return from xml like that the number becomes and object without a value and the title becomes a child. I have a feeling that I am missing something in the php return to show the structure to flex more clearly and also something in the tree to implement it as the data provider better. Here is the code that I am using in the tree: <mx:Tree x="25" y="48" height="451" id="ilabtree" dataProvider="{labarray}" labelField="@title" width="152" textAlign="center"></mx:Tree>
I have component with Trees and I'm moving elements from one to another. I store data in dataProvider as XMLList with labelFiled="name" and itemRenderer as class, which expends one (thanks to that nodes and elements have checkboxes). I enabled moving mechanism between Trees just by enabling Tree's properties (dragEnabled="true" dragMoveEnabled="true" dropEnabled="true"). Problem occurs when I try to get data from dataProvider, which has only elements. To get data I use command:
I have an actionscript-instantiated component in a containment hierarchy; it extends ComboBox, but it's instantiated dynamically--you never know when you're going to need it. Somewhere up in its containment hierarchy, there's a thing which extends NavigatorContent which logically is the right place to put the valid values for said combo box. What's the canonical way for that child component to get a reference to that set of valid values?
I have a tree using an ArrayCollection/Object data provider. The following code worked with an XML data provider but won't work with the non-XML data provider:
What I need is for each of the nodes highlighted in green to return the child Nodes. Example: when I move the mouse over the menu Indoor lighting, the results should be: Indoorlighting | LED 10W> 3W LED> LED 6W
I have been given the task at work to create a interactive tree. A little like a family tree, but instead of people it will be branches (think of them as buildings). I've spent a day or so looking and finding out how to get the data from my SQL database in a format that flash can read it etc. Anyhow the problem is I don't really know where to start with the graphical aspect of it...
Each branch can have more than one child and i want the user to be able to scroll through the history of that branch, seeing it's parent branch and also it's child branches, each branch will have a certain amount of information to show. So it's almost as if i need to create a branch class and then use this and load all the data into it etc.
Should i create a new layer for each branch? Then when the user clicks a down button i just take them to a new layer? Do i create the whole thing on one layer and have navigation buttons so the user can scroll around the window and see all the other branches?
It would be nice if i could draw the damn thing at run time, and the user almost walks along lines from one branch to another, and has the option which path to take if one branch has more than one child etc.
