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博客园 - Ellipse

Design by Contract what's interface Provider, Manager, Helper - Ellipse Build your own CAB #13 - Embedded Controllers with a Dash of DSL Layer supertype for MVP - Ellipse Build your own CAB#12 - Rein in runaway events with the "Latch " Build your own CAB Part #9 - Domain Centric Validation with the Notification Pattern Build your own CAB Part#8 - Assigning Responsibilities in a MVP pattern Build your own CAB Par#7 - what's the Model? Having a break Build your own CAB Part #6 - View to Presenter Communication Build your own CAB Part #4 - The Passive View Build your own CAB Part #3 - The Supervising Controller Pattern Build your own CAB Part #1 - The Preamble（Jeremy D. Miller） Build your own CAB Part #2 - The Humble Dialog Box -- Jeremy D. Miller Gridview 的RowCommand Reading Build your own CAB (1) -- Jeremy D. Miller ActionList Webpage redirection
Build your own CAB#11 - Event Aggregator
Ellipse · 2007-09-28 · via 博客园 - Ellipse

meet problems

  1. too many  subscribers and publisher
  2. too many kinds of event

So aggregator

  1. know all objects
  2. manage the events from all objects
  3. propagate event to subscribers

发表于 2007-09-28 11:18  Ellipse  阅读(284)  评论(0)    收藏  举报

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