Provides type conversion for the result type of a workflow activity operation.

为工作流活动操作的结果类型提供类型转换。

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Provides the functionality required to validate a workflow activity designer while it is being edited and to provide the results of the validation process.

提供必要的功能，以便在对工作流活动设计器进行编辑时，验证该工作流活动设计器并提供验证过程的结果。

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Provides a container for all the properties attached to an instance of a validation error that occurred during the design time or run time of a workflow activity.

提供一个容器，用于包含与某个验证错误的实例相关的所有属性，而此验证错误是在工作流活动的设计时或运行时发生的。

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The expectation is that they will work with their activity stream daily and see the workflow items within that stream.

FORBES: Modeling Enterprise Social Business Processes