How to add custom property to CharacterFormat?

Looked into it, you are correct, from 2.0, ApplyElementUserStyleOperation is deprecated, for 3.0, you can uses ApplyFormatToElementOperation.

See reference here: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flashx/textLayout/operations/ApplyFormatToElementOperation.html 

Sample code:

var styleName:String = "userStyleName";          

var newStyleValue:String = "newUserStyleValue";               

var format:TextLayoutFormat = new TextLayoutFormat();               

format.fontSize = 10;               

format.setStyle(styleName,newStyleValue);               

ApplyFormatToElementOperation(textFlow.interactionManager.getSelectionState(), textFlow, format);

Hi Samuel, 

Hope below code helps, it shows how to use ApplyElementUserStyleOperation to apply user styles. 

var styleName:String = "userStyleName";

var origStyleValue:* = textFlow.getStyle(styleName);

var newStyleValue:String = "newTFStyleValue";

var editManager:EditManager = new EditManager();

textFlow.interactionManager = editManager;

ApplyElementUserStyleOperation(editManager.getSelectionState(),textFlow,styleName,newStyleValue));

I'm going to echo Brent's suggestion. I'd suggest looking at the ApplyElementUserStyleOperation -- create one and then call editManager.doOperation with it. Sorry, there ought to be a method for it on the EditManager, but you can do it yourself with just this small extra step. Note that the API for this is different from applyFormat, because with this you specify the actual element it applies to. In your case, this might always be the leaf node, but the API allows you to add at any of the FlowElement hierarchy.

- robin