Using the source attribute

You use the source attribute of the <mx:Script> tag to include external ActionScript files in your Flex applications. This provides a way to make your MXML files less cluttered and promotes code reuse across different applications.

The following example shows the contents of the IncludedFile.as file:

public function computeSum(a:Number, b:Number):Number {
return a + b;

}

The following example imports the contents of the IncludedFile.as file. This file is located in the same directory as the MXML file.

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.macromedia.com/2003/mxml">

   <mx:Script source="IncludedFile.as" />

   <mx:TextInput id="ta1st" text="3"/>

   <mx:TextInput id="ta2nd" text="3"/>

   <mx:TextArea id="taMain"/>

   <mx:Button id="b1" label="Compute Sum" 
      click="taMain.text=computeSum(Number(ta1st.text), Number(ta2nd.text))"/>

</mx:Application>

The source attribute of the <mx:Script> tag supports both relative and absolute paths. For more information, see Referring to external files.

You cannot use the source attribute and wrap ActionScript code inside the same <mx:Script> tag. To include a file and write ActionScript in the MXML file, use two <mx:Script> tags.

Version 1.5

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