Actually, the problem that you are seeing is due to this bug which we have fixed in Moxie:
https://bugs.adobe.com/jira/browse/SDK-9646 The default drag and drop for Lists didn't give unique UUIDs to each copy, therefore, if you copied the same item twice, you couldn't select one of them. I don't know of a workaround, but, you can certainly grab one our Flex SDK nightly builds (after 180107) and look at the code in ListBase.as which was changed. Here is the Flex changelist from when this was fixed: Change 180107 by [EMAIL PROTECTED] on 2007/08/20 17:31:13 Flex Bug Fix SDK-9646 our d&d COPY functionality in the controls is incorrect or incomplete at best Previously, we were not making a copy of the source item and putting it into the destination source. Now, we make a deep copy using ObjectUtil.copy and we generate a new UID (if the source implements IUID) or a new mx_internal_uid (if it has one already) value using UID.createUID. Bugs: SDK-9646 QA: Yes! Please test drag and drop w/ both Move and Copy. Doc: Yes, I've added new text to dragDropHandler that describes the default COPY algorithm. Affected files ... ... //depot/flex/sdk/frameworks/projects/framework/src/mx/controls/listClass es/ListBase.as#54 edit Again, all of this information is available on labs.adobe.com. Thanks, Joan ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of roller_27 Sent: Tuesday, September 11, 2007 9:35 AM To: [email protected] Subject: [flexcoders] tileList issue if the same item is dropped twice or more Hi folks This is quite frustrating. I posted on Adobes Flex Support Forum and got no replys.. not encouraging. I'm using two tilelists and you can drag items from one to the other. If you drag an item more than once then when you rollover that item it highlights the second(or most recent) version of the item you dragged. Basically the second tile list is containing exact copies of the first, so that when you rollover an item it is behaving as if only the most recent addition to the component is there. Here is the code. <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml <http://www.adobe.com/2006/mxml> " layout="absolute" width="560" height="341"> <mx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] private var listArray:Array=[ {label: "item0", data: 0},{label: "item1", data: 1}, {label: "item2", data: 2},{label: "item3", data: 3}, {label: "item4", data: 4},{label: "item5", data: 5}, {label: "item6", data: 6},{label: "item7", data: 7}]; [Bindable] public var cartFilterCol:ArrayCollection ; ]]> </mx:Script> <mx:Canvas width="568" height="340"> <mx:TileList id="filterTilelist" direction="vertical" dataProvider="{listArray}" itemRenderer="mx.controls.Button" allowMultipleSelection="false" dragEnabled="true" width="219" borderStyle="inset" height="228" x="48" y="36"> </mx:TileList> <mx:TileList backgroundColor="#ffffff" dataProvider="{cartFilterCol}" dropEnabled="true" allowMultipleSelection="false" dragMoveEnabled="true" dragEnabled="true" borderStyle="inset" columnCount="1" height="228" width="194" x="275" y="36"> </mx:TileList> </mx:Canvas> </mx:Application> I think this is the issue here https://bugs.adobe.com/jira/browse/SDK-11894 <https://bugs.adobe.com/jira/browse/SDK-11894> It seems to suggest that this issue is resolved but it doesn't go into details. Can anybody help me, even an ugly hack would do? Have tried several things like manually setting the mx_internal_uid on object beign dragged before it is dropped but no luck so far. I'm using Flex builder 2.0.1. Thanks Rob
