Workflow Activity Authoring Using the Activity Class
The most basic way to create an activity using Windows Workflow Foundation (WF) in .NET Framework 4.6.1 is to create a class that inherits from Activity that creates functionality by assembling custom activities or activities from the Built-In Activity Library. This topic demonstrates how to create an activity that writes two messages to the console.
To create a custom Activity using the activity designer
Open Visual Studio 2012.
Select File, New, Project. Select Workflow 4.0 under Visual C# in the Project Types window, and select the v2010 node. Select Activity Library in the Templates window. Name the new project HelloActivity.
Open the new activity. Drag a Sequence activity from the toolbox onto the designer surface.
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