ActionScript 2.0 :: Tree Structures - Replace Pointers To Nodes With Nodes Themselves
Jan 26, 2006
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.
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 a inputTextField, and in my inputTextField in my GamePage class i want to be able to take the text that you should be able to write in the inputTextField, and replace the text from the inputTextField with my nodes in my xml-fil. In my Xml class above I want to have that code that converts the text from the inputTextField, ex. If i write "monkey" in my inputTextField, I want to replace {ANIMAL} node in my xml-fil with monkey.
There was once a {ANIMAL} who came from {CITY}. {ANIMAL} lived in a small little red julhus, just like Santa does. {CITY} also had her Santa Claus, and his name {NAME}. {ANIMAL} and {NAME} was in fact best friends for ages ago, and they lived in the same little red house.
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.
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
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'?
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'm trying to work with XML in flash here and ran into an issue. I need to collect all the nodes in an XMLList that contains a certain childnode with a certain value. For example, from the XML below I just want to get the ''product'' nodes that have 1 as a value for ''amount'', i.e product 3 and 5.
I have an xml schema and recently got some actionscript working to parse it. The problem is, the actionscript is parsing some of the nodes, but missing some others, specifically the "inner" ones. Attached is the xml structure, and a simple Fla that loads the xml and attempts to trace all the nodes. You will notice, when you run it, it only traces the "ContactDetail" node once, and so misses the data.
I'm fairly new to XML and Flash, and am having some trouble accessing some deeper nodes in the XML feed that I'm using for my project. See details below. I can access the headline fine, but it's anything below that - the timestamp and the excerpt that I'm having trouble accessing. For now, I'm just starting with the timestamp.[code]...
Is it possible to dynamically create child nodes of an xml file with flash??Im what i want to do is save a users name etc in an xml file without having to manually add nodes in.So when a user clicks a button to save their details a new
I'm trying to populate a datagrid via an external xml file. i'v gotten a good ways into it but have hit a stumbling block that i can't get past when it comes to using the child nodes to populate the datagrid.
How to find out that. Is any new child node is available in xml or not.this is the structure of xml:if i add any child node in the xml how can i find it in from actionscript
I have 30 values coming from an xml file, and I need to programatically find out which of them is the lowest, then I need also to find out exactly where it is located, so I can get the value that is located next. What I mean is:
Let's suppose that on the following xml, Cat2 is the lowest value, I need not only to print Cat2, but also Dog1. So, I will need to find out how to get Dog1 knowing that Cat2 is the lowest value.
I'm working with XML in AS3. I'm loading in some xml that has dates in a format like: 2011-1-12-10-00-a
I am converting those to actual Flash Date so I can compare them and use the methods of the Date class, etc. I would prefer to convert them once and then store them back in the XML node they came from.Is it possible to store complex values like date or what have you in an XML?
