[flexcoders] Re: DragManager question

[rahultnath]

Try This.......This will help you




<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; 
layout="absolute" width="600" height="350" 
viewSourceURL="srcview/index.html">
        <mx:Script>
                <![CDATA[
                        import mx.collections.ArrayCollection;
                        import mx.collections.ListCollectionView;
                        import mx.controls.List;
                        import mx.core.DragSource;
                        import mx.events.*;
                        import mx.managers.DragManager;
                        import mx.controls.Alert;
                        import mx.collections.IList;
                        import flash.events.MouseEvent;
                        
                        private var dropInitiator:String

            private function setDragInitator(event:MouseEvent, 
id:String):void
            {
                dropInitiator = id;
                //Alert.show("id: " + id);
            }
            
                private function doDragEnter(event:DragEvent):void 
                {
                        
                        var dropTarget:DataGrid = DataGrid
(event.currentTarget);
                    var dataInfo:ArrayCollection = 
dropTarget.dataProvider as ArrayCollection;
                        var items:Array = 
event.dragSource.dataForFormat("items") as Array;
                        
                                var drop:Boolean = true;
                                
                                if(dropInitiator == dropTarget.id){
                                        
                                        DragManager.showFeedback
(DragManager.MOVE);
                                        DragManager.acceptDragDrop
(dropTarget);
                                } else {
                                        for(var i:int = 0; i < 
dataInfo.length; i++){
                                                if(dataInfo[i].data 
== items[0].data) drop = false;
                                        }

                                        if(drop){
                                        
        DragManager.showFeedback(DragManager.COPY);
                                        
        DragManager.acceptDragDrop(dropTarget);
                                        }
                                }
                }

                private function doDragDrop(event:DragEvent):void 
                {        
                var dropTarget:DataGrid = DataGrid
(event.currentTarget);  
                doDragExit(event); 
                var items:Array = event.dragSource.dataForFormat
("items") as Array;
                var dropLoc:int = dropTarget.calculateDropIndex
(event); 

                for(var i:int = 0; i < items.length; i++)
                {                 
                    IList(dropTarget.dataProvider).addItemAt(items
[i], dropLoc );
                }
            }
            
            private function doDragExit(event:DragEvent):void 
            {
                var dropTarget:DataGrid = DataGrid
(event.currentTarget);          
                dropTarget.hideDropFeedback(event);
            }
                ]]>
        </mx:Script>

        <mx:HDividedBox right="10" left="10" top="54" bottom="10">
                <mx:DataGrid width="100%" height="100%" 
dragEnabled="true" id="dragList" mouseDown="setDragInitator
(event, 'dragList');" >
                          <mx:ArrayCollection>
                    <mx:Object>
                        <mx:label>Item 0</mx:label>
                        <mx:data>0</mx:data>
                    </mx:Object>
                    <mx:Object>
                        <mx:label>Item 1</mx:label>
                        <mx:data>1</mx:data>
                    </mx:Object>
                    <mx:Object>
                        <mx:label>Item 2</mx:label>
                        <mx:data>2</mx:data>
                    </mx:Object>
                    <mx:Object>
                        <mx:label>Item 3</mx:label>
                        <mx:data>3</mx:data>
                    </mx:Object>
                    <mx:Object>
                        <mx:label>Item 4</mx:label>
                        <mx:data>4</mx:data>
                    </mx:Object>
                    <mx:Object>
                        <mx:label>Item 5</mx:label>
                        <mx:data>5</mx:data>
                    </mx:Object>
                </mx:ArrayCollection>
                        <mx:columns>
                                <mx:DataGridColumn headerText="ID" 
dataField="data"/>
                                <mx:DataGridColumn 
headerText="Title" dataField="label"/>
                        </mx:columns>
                </mx:DataGrid>
                <mx:DataGrid width="100%" height="100%"  
                        dragMoveEnabled="true" 
mouseDown="setDragInitator(event, 'dropList');"
                        dragEnter="doDragEnter(event);"            
                        dragExit="doDragExit(event);"             
                        dragDrop="doDragDrop(event);" 
                        dragEnabled="true" id="dropList" 
dataProvider="{null}">
                        <mx:columns>
                                <mx:DataGridColumn headerText="ID" 
dataField="data"/>
                                <mx:DataGridColumn 
headerText="Title" dataField="label"/>
                        </mx:columns>
                </mx:DataGrid>
        </mx:HDividedBox>
        <mx:Label x="56" y="24" text="List 1: Drag from list to List 
2" fontWeight="bold"/>
        <mx:Label x="312" y="27" text="List 2: Drag to list from 
List 1, or Move within list" fontWeight="bold"/>
</mx:Application>