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Using length of items array for a boolean

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I have a button I was trying to enable only if there are items in the transform manager:


But it is not enabling when I add items to the transform manager. Am I missing something?

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Frankly, I'm not a big Flex guy but this sure seems like a data binding issue that's Flex-related, not so much TransformManager-related. You could just set up a listener for the SELECTION_CHANGE event and have it affect your button's enabled state.

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I wound up adding a function call whenever I add or remove an item to update the boolean.


I think all I'd need, though, is to make the "items" variable bindable. I can try it out; where is this variable set in your code?

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