Thanks for your reply and help.
I got it, my only concern is that I have 40K records and i hope this is a
fast way.
[Bindable] private var acResult:ArrayCollection = new ArrayCollection();
private function groupAndSumArray(ac:ArrayCollection, key:String):void
{
var acLength:Number = ac.length;
var flag: Boolean;
for (var i: int = 0; i < acLength; i++) {
flag = false;
for (var j: int = 0; j <
acResult.length; j++) {
if (acResult.getItemAt(j)[key]
== ac.getItemAt(i)[key]) {
acResult.getItemAt(j)["Amount_1"] += ac.getItemAt(i)["Amount_1"];
flag = true;
break;
}
}
if (!flag) {
acResult.addItem(ac.getItemAt(i));
acResult.refresh();
}
}
}
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