Noticing changes to a WOTextField

From: Serethos (Seretho..eb.de)
Date: Tue Apr 24 2007 - 15:45:51 EDT

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    I have a component embedded within another component (it is included in
    the wod-descriton file)
    which gets displayed as a webpage.
    The embedded one represents a Form with a set of WOTextFields. When the
    submit-button is
    activated, the outer component needs to know if something in the
    textfields has changed, so
    that it can trigger an cost expensive event or avoid it if nothing changed.
    What is the smartest way to check for that condition?

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