Flash CS3 Documentation 
Flash CS3 Documentation |
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| ActionScript 2.0 Components Language Reference > DataSet component > DataSet.enableEvents() | |||
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Flash Player 7.
Flash MX Professional 2004.
dataSetInstance.enableEvents()
Nothing.
Method; reenables events for the DataSet objects after events have been disabled by a call to DataSet.disableEvents(). To reenable events for the DataSet object, the enableEvents() method must be called an equal or greater number of times than disableEvents() was called.
In the following example, events are disabled before changes are made to items in the collection, so that the DataSet object won't affect performance by trying to refresh controls.
my_ds.addEventListener("modelChanged", onModelChanged);
function onModelChanged(evt_obj:Object):Void {
trace("model changed, DataSet now has " + evt_obj.target.items.length + " items");
}
// Disable events for the data set.
my_ds.disableEvents();
my_ds.addItem({name:"Apples", price:14});
my_ds.addItem({name:"Bananas", price:8});
trace("Before:");
traceItems();
my_ds.last();
while(my_ds.hasPrevious()) {
my_ds.price *= 0.5; // Everything's 50% off!
my_ds.previous();
}
trace("After:");
traceItems();
// Tell the data set it's time to update the controls now.
my_ds.enableEvents();
function traceItems():Void {
for (var i:Number = 0; i < my_ds.items.length; i++) {
trace("\t" + my_ds.items[i].name + " - $" + my_ds.items[i].price);
}
trace("");
}
Flash CS3