UGUI: How to get the text-width in pixels?

How can I get the width of a Text? Not the width of the RectTransform, but the width of the actual Text-string inside the UI.Text. (So I can cut it short and add ... if it doesn't fit)

I can do it in NGUI: label.printedSize.x
But how can I do it in UGUI?

 

@col000r - Hmm, I remember reading about this, never tried or verified this but came across this thread in answers, maybe it is helpful:

http://answers.unity3d.com/questions/898770/how-to-get-the-width-of-ui-text-with-horizontal-ov.html

 

Thanks a lot for the pointer!
The CalculateLengthOfMessage didn't work for me - characterInfo.advance only returns 0 here, but text.preferredWidth actually did the trick with Horizontal Overflow set to Overflow!

 

could you please share your solution? I met the same question,And I tried characterInfo, it worded but sometimes would fail.