Re: [flexcoders] Re: Full dynamic tree example

[Hari Kolasani]

Here is a sample .mxml/as  code that worked for me.  Hope this will help. - Hari ********************************************************************* <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.macromedia.com/2005/mxml" backgroundColor="#FFFFFF" creationComplete="initList()">     <mx:Script>         <![CDATA[         import mx.collections.XMLListCollection;                 var origXML:XML;         public function initList()         {             myTree.rootVisible = false;            //TODO: Get this XML from a data service             var origXMLString:String = "<MyRoot>            " +                                             "<node1 label=\"supernode1\" someProp=\"sdsdf \" isBranch=\"true\"/>" +                                             "<node2 label=\"supernode2\" someProp=\"sdsdf \" isBranch=\"true\"/>" +                                             "<node3 label=\"supernode3\" someProp=\"sdsdf \" isBranch=\"true\"/>" +                                         "</MyRoot>";                         origXML = new XML(origXMLString);             myTree.dataProvider = origXML;         }         public function open(event:Object)         {             var selectedNode:Object =event.node;                         var myXMLList:XMLList = new XMLList(selectedNode);                        //TODO: Get this XML from a data service based on the selected node.             var newXMLString:String = "<childnode1 label=\"childnode1\" someProp=\"sdsdf \" isBranch=\"true\" />" +                                       "<childnode2 label=\"childnode2\" someProp=\"sdsdf \" isBranch=\"false\" />" +                                       "<childnode3 label=\"childnode3\" someProp=\"sdsdf \" isBranch=\"true\" />" ;                                        var myNewXMLList:XMLList = new XMLList(newXMLString);                         selectedNode.setChildren(myNewXMLList);                         myText1.text = selectedNode.toXMLString();             myText2.text = myTree.dataProvider.source[0];             myTree.dataProvider = origXML;         }                 public function close(event:Object)         {             var selectedNode:Object = event.node;                         var myXMLList:XMLList = new XMLList(selectedNode);                         removeAllDecendants(myXMLList);                         myText1.text = selectedNode.toXMLString();             myText2.text = myTree.dataProvider.source[0];             myTree.dataProvider = origXML;         }                 public function removeAllDecendants(xmlList:XMLList)         {             var myDescendantXMLList:XMLList = xmlList.descendants();             var myDecendentXMLListCollection:XMLListCollection = new XMLListCollection(myDescendantXMLList);             myDecendentXMLListCollection.removeAll();         }      ]]>     </mx:Script>     <!-- Simple example to demonstrate the Tree control -->     <mx:XML id="myxml">     </mx:XML>     <mx:HDividedBox width="100%" height="100%">           <!-- Tree listing of directories (only) -->         <mx:Box>               <mx:Tree id="myTree" width="600" height="600" labelField="@label" defaultLeafIcon="@Embed('images/folder.gif')" nodeOpen="open(event)" nodeClose="close(event)"/>         </mx:Box>         <mx:VBox>             <!-- Text Areas to Display Node XMLs -->             <mx:Box>                  <mx:TextArea width="600" height="300" id="myText1" />             </mx:Box>              <mx:Box>                  <mx:TextArea width="600" height="300" id="myText2" />             </mx:Box>         </mx:VBox>     </mx:HDividedBox> </mx:Application> ********************************************************************* Brendan Meutzner wrote: It doesn't work for 2.0 Brendan --- In flexcoders@yahoogroups.com, "Pat Buchanan" <[EMAIL PROTECTED]> wrote: > > Brendan - thank you so much for the additional information.  I'm sure it > will prove helpful. Do you know if this FAST architecture is compatible with > Flex 2? > > However, if anyone out there happens to run into a self contained, fully > running simple example (with source) please pass along the URL.  If I can > finally get one running, I will post the source here. > > It would be greatly appreciated. > > Oh - and Flex 2 is the target, of course.  :) > > Thank you! > -Pat Buchanan > > > > On 2/24/06, Brendan Meutzner <[EMAIL PROTECTED]> wrote: > > > > Pat, > > > > Have a look at the object inspector tool in the FAST toolkit... > > > > http://www.macromedia.com/devnet/flex/articles/fast_userguide.html > > > > Pay attention to: > > > > EchoConsole.mxml > > EchoConsoleconnection.as > > EchoAppConnection.as > > > > You'll have to figure out your remote calls, but this does show the > > dynamic construction of a tree dataProvider.... might help... > > > > > > Brendan > > > > > > > > --- In flexcoders@yahoogroups.com, "Pat Buchanan" <ajillis@> wrote: > > > > > > Hello fellow Flex coders!  Greetings from the frozen state of Utah. > > > > > > Well, I'm stuck.  I see a lot of people asking for examples of how > > to do a > > > dynamic tree.  Dynamic as in JUST loading the first level of nodes, > > and when > > > the user opens a node, it calls back to the server, gets it's > > children, and > > > adds them to the tree dynamically. > > > > > > (The reason I can't load the tree all at once is because it can be > > > recursive, so the tree would go forever.) > > > > > > Anyway, I have searched the list archive and I see a LOT of answers with > > > either a quick explanation or tiny partial code snippet, but have yet to > > > find a COMPLETE running example.  Every time I find what I'm looking > > for via > > > Google, it links back to a certain pay site and I can't justify $250 > > for a > > > few lines of example code. > > > > > > Does anyone know of a fully working dynamic tree example with source? > > > > > > I'm POSITIVE it's right under my nose and I'll feel like a twinkie > > when it's > > > pointed out to me.  :( > > > > > > Thanks ya'all > > > -Pat Buchanan > > > > > > > > > > > > > > > > > -- > > Flexcoders Mailing List > > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > > Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com > > Yahoo! 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