Alex:
Thanks,
I edited the code :
private function addFromTopDG():void {
var obj:Object = ObjectUtil.copy(fromDG.selectedItem);
obj.mx_internal_uid = UIDUtil.createUID();
(toDG.dataProvider as ArrayCollection).addItem(obj);
obj = null;
}
this way can change the uid,
& you said I can delete the uid before copy it ,can you give me an
example?thanks
12 Apr 2007 00:39:38 -0700, Alex Harui <[EMAIL PROTECTED]>:
If they are truly the same data, you should prevent them from being
added twice.
If they are clones/copies, then you can always delete the uid before
copying it. However if you use strongly-typed classes instead of dynamic
objects you shouldn't have this problem provided you clone them using
ObjectUtil
-Alex
------------------------------
*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] *On
Behalf Of *aedisju
*Sent:* Wednesday, April 11, 2007 10:37 PM
*To:* [EMAIL PROTECTED]
*Subject:* [flexcoders] mx_internal_uid Problem in Add Data
the problem is that when I add the selectedItem data from fromDG to
toDG twice or more.
U can find the mx_internal_uids are the same value, It causes problem
that the DG thought that
they are the same object. Of course, I can't mousefocus in it.
Any One can help me?
Thanks!
Code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";>
<mx:Script>
<![CDATA[
import mx.utils.ObjectUtil;
import mx.controls.Alert;
import mx.collections.ArrayCollection;
[Bindable]
public var dataArr:Array = [{label:"Red", data:"#FF0000"},
{label:"Green", data:"#00FF00"},
{label:"Blue", data:"#0000FF"}
];
[Bindable]
public var problemArr:Array = new Array();
private var i:Number = 0;
private function addFromTopDG():void {
//app_From_DG.selectedItem.label = ""+i++; //if you change the
data, problem is still here
(toDG.dataProvider as ArrayCollection).addItem(fromDG.selectedItem);
}
]]>
</mx:Script>
<mx:DataGrid id="fromDG" width="600" height="200"
dataProvider="{dataArr}">
<mx:columns>
<mx:Array>
<mx:DataGridColumn width="300" dataField="mx_internal_uid"/>
<mx:DataGridColumn dataField="label"/>
<mx:DataGridColumn dataField="data"/>
</mx:Array>
</mx:columns>
</mx:DataGrid>
<mx:Button label="Add from Top_DG" click="addFromTopDG()"/>
<mx:DataGrid id="toDG" width="600" height="200"
dataProvider="{problemArr}">
<mx:columns>
<mx:Array>
<mx:DataGridColumn width="300" dataField="mx_internal_uid"/>
<mx:DataGridColumn dataField="label"/>
<mx:DataGridColumn dataField="data"/>
</mx:Array>
</mx:columns>
</mx:DataGrid>
</mx:Application>
--
Aedis.Ju--http://aedisju.blogspot.com/
