.net - ICommand - Who invoke the Execute? -

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as per topic, invokes execute?

in code, bind command button click. (for reason, not allow me put xaml codes here...)

i'm curious how/what goes behind triggers execute(). stack, seems calling: 1. button.onclick 2. primitives.buttonbase.onclick 3. commands.commandhelpers.criticalexecutecommandsource 4. actioncommand.execute

even after looking @ trace, still don't quite it. can explain me?


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