Updating text in a DC when scaling

[stevendaniels]

I have a textbox on one of my DCs which indicates its current LenX. I need for that text box to also be dynamic, so whenever the component is scaled, the value is updated (Note: I am doing the scaling from a text field in the component options dialog)

I'm sure there must be a way to do this by hooking into the behavior attribute, but I'm at a loss as to how.