package {
import mx.controls.ComboBox;
import mx.core.Application;
public class ExampleBase extends Application {
public var myComboBox : ComboBox;
public function ExampleBase() {
}
protected function onEditStateEnter() : void {
myComboBox.open();
}
}
}
and inherited MXML:
<?xml version="1.0" encoding="utf-8"?>
<ExampleBase xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns="*"
currentState="viewState">
<states>
<mx:State name="viewState">
<mx:AddChild relativeTo="{this}" position="lastChild">
<mx:target>
<mx:Text id="myLabel" selectable="true" text="Yo!" click="currentState = 'editState'" />
</mx:target>
</mx:AddChild>
</mx:State>
<mx:State name="editState" enterState="onEditStateEnter()">
<mx:AddChild relativeTo="{this}" position="lastChild">
<mx:target>
<mx:HBox id="myHBox">
<mx:ComboBox id="myComboBox" dataProvider="{[1, 2, 3]}" />
<mx:Button label="Exit" click="currentState = 'viewState'" />
</mx:HBox>
</mx:target>
</mx:AddChild>
</mx:State>
</states>
</ExampleBase>
You can find call enterState="onEditStateEnter()" there and myComboBox.open(); in method implementation. The problem is that ComboBox is opened only second time you enter the state. When I debugged I found that upon the first state appearance dropdown property of ComboBox is null. What's wrong with my example?
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