I use autoComplete component:
public function set selectedItem(value:Object):void {
if (_selectedItem != value) {
_selectedItem = value;
_selectedItemChanged = true;
invalidateProperties();
}
}
public function set selectedItems(value:ArrayCollection):void {
_initialSelectedItems = value;
_selectedItemsChanged = true;
invalidateProperties();
}
[Bindable(event="change")]
public function get selectedItem():* {
if (_selectedItems && _selectedItems.length > 0) {
return _selectedItems.getItemAt(_selectedItems.length - 1);
} else {
return null;
}
}
in commitproperties function, selectedItems add item:
override protected function commitProperties():void {
super.commitProperties();
var item:Object;
if (_selectedItemChanged && _dataProvider) {
_selectedItemChanged = false;
if (_selectedItem) {
_selectedItems.addItem(_selectedItem);
}
}
if (_selectedItemsChanged && _dataProvider) {
_selectedItemsChanged = false;
_selectedItems.removeAll();
for each (var selectedItem:Object in _initialSelectedItems) {
var foundItem:Object = null;
for each (item in _dataProvider.list) {
if (item == selectedItem) {
foundItem = item;
} else if (item.hasOwnProperty(_keyField) && item[_keyField] == selectedItem[_keyField]) {
foundItem = item;
}
if (foundItem) {
_selectedItems.addItem(foundItem);
foundItem = true;
break;
}
}
if (foundItem == null) {
_selectedItems.addItem(selectedItem);
}
}
}
}
One Command(com.adobe.cairngorm.commands.Command) to setselectedItem:
var ac = new AutoComplete();
var targetItem = ...
if (targetItem) {
ac.selectedItems = new ArrayCollection([targetItem]);
ac.selectedItem = targetItem;
}
and then get ac's value:
if (this.ac.selectedItem) {
return this.ac.selectedItem["value"];
} else {
return "";
}
here, this.ac.selecteditem is null, in commitproperties function, the _selectedItems add element, and in next frame, the commitproperties function be invoked
if i get ac's value later 5 seconds after set selectedItems, the ac's vlaue is not null
is it because i create many compontents in for loop, and the commitproperties cannot be invoked immediately, or how to make the commitproperties immediately, for example, use evt.dispatch()?
how to make sure when i use ac.selecteditem, can return not null value?
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