Question

Is it possible to use a global variable defined in app.mxml within the myIconFunction defined below ?

<s:List id="list" x="7" y="10" width="463" height="661"
        creationComplete="list_creationCompleteHandler(event)" labelField="name" click="list_clickHandler(event)">
    <s:itemRenderer>
        <fx:Component>
            <s:IconItemRenderer  labelField="name"
                                 iconFunction="myIconFunction"

                                decorator="@Embed(source='assets/images/general/arrow_next.jpg')"
                                 iconWidth="50"
                                 iconHeight="50">
                <fx:Script>
                    <![CDATA[
                        private function myIconFunction(item:Object):String
                        {
                            return "http://localhost/mydatapath/" + item.imagelink;
                           // how to use this.parentApplication.dataPath here
                        }
                    ]]>
                </fx:Script>
            </s:IconItemRenderer>
        </fx:Component>
    </s:itemRenderer>

</s:List>

The parentApplication.dataPath variable stores IP of my server. Since I have used similar functions at several places in my application, it requires me to change the IP at every place when I move from localhost to actual server.
Using

 this.parentApplication.dataPath + item.imagelink

gives compile time error.
So is it possible to use an external/global variable within such a function ?

Answer 1

I solved the problem by making the myIconFunction public

public function myIconFunction(item:Object):String
                    {
                        return this.parentApplication.dataIP + item.imagelink;
                       // works
                    }