[flexcoders] Re: Datagrid to Tree Drag Drop

[aerospc04]

Okay I *think* this is close...

Can any experienced users HELP ME out?  (I'm down to a simple type 
coercion error)

The following line is thowing an error
var item:TreeListData = itemData[i];
Here's the error
Error #1034: Type Coercion failed: cannot convert [EMAIL PROTECTED] to 
mx.controls.treeClasses.TreeListData
       
public function treeDragDrop(event:DragEvent): void 
{
  var dropLocation:int = treeList.calculateDropIndex(event);
  var data:XMLListCollection = XMLListCollection
(treeList.dataProvider);                  
  var itemData:Array = event.dragSource.dataForFormat('items') as 
Array;
       
  for (var i:int = 0; i < itemData.length; i++) 
  { 
    var item:TreeListData = itemData[i];
    data.addItem({label:item.label,data:item});
  }   

  treeList.hideDropFeedback(event);   
 }


Here's the full app
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; xmlns="*" 
layout="absolute" creationComplete="initApp();">
   <mx:XML id="treeDP">
      <node label="Mail">
         <node label="Inbox"/>
         <node label="Personal Folder">
            <node label="Demo"/>
            <node label="Personal"/>
            <node label="Saved Mail"/>
            <node label="bar"/>
         </node>
         <node label="Calendar"/>
         <node label="Sent"/>
         <node label="Trash"/>
      </node>
   </mx:XML>
   <mx:Tree id="firstList" height="264" width="464" 
         showRoot="false"
         labelField="@label"
         dragEnabled="true"
         allowMultipleSelection="true"
         creationComplete="initApp();"
     dragEnter="treeDragEnter(event);" 
    dragDrop="treeDragDrop(event);" 
    dragOver="treeDragOver(event);" 
    dragExit="treeDragExit(event);"   
         
         />
   <mx:List id="playlist" width="200" height="200" x="72" y="283" 
  dragEnabled="true">
      <mx:dataProvider>



         <mx:ArrayCollection>
           <mx:Object>
             <mx:label>Movie2</mx:label>
             <mx:Price>11.99</mx:Price>
             <mx:Album>Slanted and Enchanted</mx:Album>
         </mx:Object>
         <mx:Object>
             <mx:label>Movie1</mx:label>
             <mx:Album>Brighten the Corners</mx:Album>
             <mx:Price>11.99</mx:Price>
         </mx:Object>          

         </mx:ArrayCollection>

      </mx:dataProvider>
   </mx:List>
   <mx:Script>
      <![CDATA[
  import mx.controls.treeClasses.TreeListData;
  import mx.controls.listClasses.ListData;   
          private function initApp():void {
            firstList.dataProvider = treeDP;
         }
 import mx.controls.treeclasses.TreeNode;
 import mx.controls.treeClasses;
 import mx.core.UIComponent;
 import mx.events.DragEvent;
 import mx.managers.DragManager;
 import mx.events.ListEvent;
 import mx.controls.Alert;
 import mx.collections.XMLListCollection;

 
  public function treeDragEnter(event:DragEvent): void {
    var dropTarget:UIComponent=UIComponent(event.currentTarget);
       DragManager.acceptDragDrop(dropTarget);
       DragManager.showFeedback(DragManager.COPY);
 }

  public function treeDragOver(event:DragEvent): void 
 {
    var dropLocation:int = firstList.calculateDropIndex(event);
    var data:XMLListCollection = XMLListCollection
(firstList.dataProvider);
    
    if (dropLocation >= 0 && dropLocation < data.length) 
    {
       firstList.selectedIndex = dropLocation;   
       firstList.hideDropFeedback(event);               
    }
    else 
    {
       firstList.selectedIndex = -1;
       firstList.showDropFeedback(event);   
    }
 }


  public function treeDragExit(event:DragEvent): void 
 {            
    firstList.hideDropFeedback(event);
 }

public function treeDragDrop(event:DragEvent): void 
 {
    var dropLocation:int = firstList.calculateDropIndex(event);
    var data:XMLListCollection = XMLListCollection
(firstList.dataProvider);

    var itemData:Array = event.dragSource.dataForFormat('items') as 
Array;
    for (var i:int = 0; i < itemData.length; i++) 
    { 
       // Get the node data
       var item:TreeListData = itemData[i];
       data.addItem({label:item.label,data:item});// data:item});
    }   

    firstList.hideDropFeedback(event);   
         }

         
      ]]>
   </mx:Script>
</mx:Application>






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