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My general understanding is that when the propertychanges, the local callback is immediately performed. So I can assume that happens immediately. However, a bound property's callback will not take place till the binding propagates, which may not occur immediately. is this correct?

H.B.
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James Joshua Street
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Sounds about right, though bound properties have their own change events which are not used that often, they should occur immediately as well. The propagation is dependent on the Binding.UpdateSourceTrigger and may be delayed, so the binding source's event may fire later.

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H.B.
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