Hi All! When I add a new item to the tree node and then open this item by user input null pointer exceptions is thrown and after that Tree behavior becomes strange.
Steps to reproduce: 1. Run application. 2. Select My Branch node. 3. Click Add button. As a result My Leaf subnode is created as a child of My Branch. 4. Click My Leaf disclosure icon to expland this item. 5. Exception mentioned above is thrown. I compile this example in Flex 2.01 and run in Flash Player 9.0.47.0. We have found workaround. The bug can be "fixed" by setting Tree openDuration style to 0. But I dislike workarounds. Are there any real solutions to fix this bug? Sergey. <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="vertical"> <mx:Script> <![CDATA[ *import* mx.collections.XMLListCollection; *private* *static* *const* itemsXML : XML = <root> <item label=*"My Branch"* isBranch=*"true"* /> </root>; *private* *static* *const* itemsXMLListCollection : XMLListCollection = *new* XMLListCollection(itemsXML.children()); *private* *function* onAddButtonClick() : *void* { *var* parentXML : XML = XML(tree.selectedItem); *var* newItemXML : XML = <item label=*"My Leaf"* isBranch=*"true"* />; tree.dataDescriptor.addChildAt(parentXML, newItemXML, parentXML.length()); } ]]> </mx:Script> <mx:Tree id="tree" labelField="@label" showRoot="false" dataProvider="{itemsXMLListCollection}" /> <mx:Button label="Add" click="onAddButtonClick()" /> </mx:Application>
