Best Practice to ref selectedItem in DataGrid

Question

Hi,
I have a datagrid and with a double click event:
doubleClick="viewItem(event);"
In my viewItem() function I can reference the selectedItem
using the
dataGridID.selectedItem.property notation but I thought it
was best practice to use the event object as follows:
private function viewItem (event:Event):void {
Alert.show( event.target.selectedItem.property.toString() );
However when I try this I get the following error:
ReferenceError: Error #1069: Property selectedItem not found
on mx.controls.dataGridClasses.DataGridItemRenderer and there is no
default value.
Is it possible to reference a property this way in a dataGrid
and is it best practice?

Answer 1

The reason is that the event's target is the renderer, not
the DataGrid. I would expect currentTarget to be the datagrid, so
you can use that if you like. Cast it to a DataGrid before you use
it:
private function viewItem(event:Event):void{
Alert.show( (event.currentTarget as
DataGrid).selectedItem.property.toString() );
}