I would directly add items to the dataprovider. The dataProvider wraps raw objects with its own methods and event dispatchers. Like this:
var newNode:XML = <item label='Middle' isBranch="true"></item>; xmlBound2Tree.dataProvider.addItemAt(newNode, 1); This article may be of help to you. http://livedocs.macromedia.com/flex/201/html/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Book_Parts&file=about_dataproviders_057_16.html You may need to name your nodes the same name, give yourself a label function that takes that into account and may need to enable the XML e4x format. On 1/21/07, dorkie dork from dorktown <[EMAIL PROTECTED]> wrote:
They explain it better than I do. :P http://livedocs.macromedia.com/flex/2/docs/00000499.html Search on the page for "raw data object" Remember the race??? ;) On 1/21/07, dorkie dork from dorktown <[EMAIL PROTECTED] > wrote: > > The XMLListCollection has a special design interfaces that allow it to > be used correctly with databinding. The XML object does not. Remember how > you use MyList.addItem(myItem) instead of myArray.push(myItem)? This is > because addItem inspects data and dispatches events. It is the same thing > with the XML object. > > Array is used if data is static. ArrayCollection is used if data will > change. > XML is used if data is static. XMLCollection is used if data will > change. > > The general rule is, if data will change, data binding is used, or you > need to filter or sort the data put your array or xml into collections > before binding or putting into dataproviders. > > HTH > > > On 1/21/07, Andriy Panas < [EMAIL PROTECTED]> wrote: > > > > Hello flexcoders, > > > > I ran into 2 different behaviors dependant on the type of binded > > data > > source (XML or XMLListCollection) to mx:Tree's dataProvider. > > > > Behavior #1 > > ---------- > > If I bind the data of XML type to dataProvider's mx:Tree the > > whenever I add the new node to XML > > data source at the runtime then Tree's view DOES NOT update > > automatically. > > > > Behavior #2 > > ---------- > > If I bind the data of XMLListCollection type to dataProvider's > > mx:Tree the whenever I add the new node to XML > > data source at the runtime then Tree's view DOES update automatically. > > > > Studying the source code of XML, XMLListCollection did not reveal to > > me why does this situation happen. > > > > Any thoughts? I would appreciate any opinions on this issue to get a > > > > better understanding of Flex 2 UI framework. > > > > --Code example START-- > > <?xml version="1.0" encoding="utf-8"?> > > <mx:Application xmlns:mx=" http://www.adobe.com/2006/mxml"; > > width="100%" verticalAlign="left"> > > <mx:Script> > > <![CDATA[ > > import mx.collections.XMLListCollection; > > > > > > [Bindable] > > var employeesXML : XML = <list> > > <department label="TV Station"> > > <employee label="John"/> > > <employee label="Bruce"/> > > </department> > > <department label="Radio Station"> > > <employee label="Gerald"/> > > </department > > > <employee label="George"/> > > </list>; > > > > [Bindable] > > var employeesData : XMLListCollection = new > > XMLListCollection( employeesXML.department ); > > > > function addNewItem() : void { > > var newNode : XML = <employee label="Jim"/>; > > employeesXML.appendChild(newNode); > > employeesData.addItem(newNode); > > employeesTextXML1.text = > > employeesXML.toXMLString(); > > employeesTextXML2.text = > > employeesData.toXMLString(); > > > > } > > > > ]]> > > </mx:Script> > > <mx:HBox width="100%"> > > <mx:Tree id="employees1" showRoot="false" > > dataProvider="{employeesXML}" width="50%" labelField="@label"> > > </mx:Tree> > > <mx:Tree id="employees2" > > dataProvider="{employeesData}" width="50%" labelField="@label"> > > </mx:Tree> > > </mx:HBox> > > <mx:Button label="addItem" click="addNewItem()"/> > > <mx:HBox width="100%"> > > <mx:TextArea id="employeesTextXML1" height="200" > > width="300"/> > > <mx:TextArea id="employeesTextXML2" height="200" > > width="300"/> > > </mx:HBox> > > </mx:Application> > > --Code example END-- > > > > -- > > Best regards, > > Andriy mailto:[EMAIL PROTECTED] > > > > > > > > -- > > Flexcoders Mailing List > > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > > Search Archives: > > http://www.mail-archive.com/flexcoders%40yahoogroups.com > > Yahoo! Groups Links > > > > > > > > >
