On Monday 05 June 2006 18:27, Dennis Riedel wrote:
What I want to get now is the data within this DragSource object from
the item I am dragging. The documentation (LiveDocs) says something
about an IDataProvider Interface but I cannot find it anywhere in the
LiveDocs.
I built last week a thing that had drag/drop panels.
The way outlined in the Flex docs is that you store the data you want to pass
on in the drag object (dragSource).
I've attached the sample code from the docs.
--
Tom Chiverton
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?xml version=1.0?
mx:Application xmlns:mx=http://www.adobe.com/2006/mxml;
mx:Script
![CDATA[
import mx.core.DragSource;
import mx.managers.DragManager;
import mx.events.*;
import mx.containers.Canvas;
// Called when the user clicks the mouse on either colored canvas.
// Initializes the drag.
private function dragIt(event:MouseEvent, text:String,
format:String):void {
// Get the drag initiator component from the event object.
var dragInitiator:Canvas=Canvas(event.currentTarget);
// Create a DragSource object.
var ds:DragSource = new DragSource();
// Add the data to the object.
ds.addData(text, format);
// Create a Canvas container to use as the drag proxy.
// You must specify a size for the proxy image,
// or else it will not appear.
var canvasProxy:Canvas = new Canvas();
canvasProxy.width=30;
canvasProxy.height=30;
canvasProxy.setStyle('backgroundColor',
dragInitiator.getStyle('backgroundColor'));
// Call the DragManager doDrag() method to start the drag.
// For information on this method, see
// the Initiating the drag section.
DragManager.doDrag(dragInitiator, ds, event, canvasProxy);
}
// Called if the user dragged a proxy onto the drop target canvas.
private function doDragEnter(event:DragEvent):void {
// Get the drop target component from the event object.
var dropTarget:Canvas=Canvas(event.currentTarget);
// Accept the drag only if the user is dragging data
// identified by the 'color' format value.
if (event.dragSource.hasFormat('color')) {
DragManager.acceptDragDrop(dropTarget);
}
}
// Called if the target accepts the dragged object and the user
// releases the mouse button while over the canvas.
// Handles the dragDrop event for the List control.
private function doDragDrop(event:DragEvent):void {
// Get the data identified by the color format from the drag source.
var data:Object = event.dragSource.dataForFormat('color');
// Set the canvas color.
myCanvas.setStyle(backgroundColor, data);
}
]]
/mx:Script
!-- A horizontal box with red and green canvases the user can drag --
mx:HBox
mx:Canvas
