返回一个值，该值指示当前工作流设计器是否支持指定的类型。

Returns a value that indicates whether the specified type is supported on the current workflow designer.

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此命名空间中的类型由工作流设计器生成，用于帮助处理xaml定义的类型。

Types in this namespace are generated by the workflow designer to aid in processing XAML defined types.

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缺点：与使用XML编辑器来编辑您的工作流文件相比，工作流设计器会使工作流文件更大。

Disadvantage: the workflow Designer makes your workflow files larger than they would be if you edited them by using the XML Editor.

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