mfp: Replaceable methods

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Источник: https://blogs.msdn.microsoft.com/mfp...eable-methods/
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Chain of command enables wrapping of methods – but you must call next. This ensure the "chain" is not broken, and everyone wrapping the method will indeed be called. However, sometimes it makes sense to break the chain. Here are some examples where this could be useful: In lookup methods. The base implementation will open...

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Источник: https://blogs.msdn.microsoft.com/mfp...eable-methods/