FLEX: the custom component is still a Null Object when I invoke its method
- by Patrick
Hi,
I've created a custom component in Flex, and I've created it from the main application with actionscript. Successively I invoke its "setName" method to pass a String.
I get the following run-time error (occurring only if I use the setName method):
TypeError: Error #1009: Cannot access a property or method of a null object reference.
I guess I get it because I'm calling to newUser.setName method from main application before the component is completely created.
How can I ask actionscript to "wait" until when the component is created to call the method ? Should I create an event listener in the main application waiting for it ? I would prefer to avoid it if possible.
Here is the code:
Main app
...
newUser = new userComp();
//newUser.setName("name");
Component:
<?xml version="1.0" encoding="utf-8"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="100" height="200" >
<mx:Script>
<![CDATA[
public function setName(name:String):void {
username.text = name;
}
public function setTags(Tags:String):void {
}
]]>
</mx:Script>
<mx:HBox id="tagsPopup" visible="false">
<mx:LinkButton label="Tag1" />
<mx:LinkButton label="Tag2" />
<mx:LinkButton label="Tag3" />
</mx:HBox>
<mx:Image source="@Embed(source='../icons/userIcon.png')"/>
<mx:Label id="username" text="Nickname" visible="false"/>
</mx:VBox>
thanks
