Hi,

I'm trying to find a way to cancel a change to a dependency property
if some other condition exist. Is there a clean way to do it? Coercion
doesn't seem to be the place to do it, as it only has the value (ok to
modify the value but I don't have access to what the original value
was...). The Changed callback seems to be the place, but if I change
the value from within that method won't it fire off another changed
event? (don't want an endless loop - but might be ok if the logic only
sets the value if its not correct?)

Have done a search but am not turning up anything helpful.

thanks,
Stephen
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