Programming Microsoft® Composite UI Application Block and Smart Client Software Factory

C. WorkItem Details

1. The main purpose of a WorkItem today is to facilitate loose coupling by holding certain classes of objects in well-known locations so that other objects can find the resources that they need to do their jobs. To accomplish this, the WorkItem class contains a number of collections, as shown in Table 3-1. All of them are strongly typed except Items, which exists to hold anything not served by a strongly typed collection.

   Table 3-1. Collections of the WorkItem Class

   Property Name	Description	Searches Parent
   Commands	Command objects, used for tying .NET events from user interface objects such as menus to business logic methods (see Chapter 5).	Yes
   EventTopics	EventTopic objects, used in conjunction with CAB's loosely coupled publish-and-subscribe ...