Introduction

In Chapter 2, Workflows we introduced sequential workflows that used out-of-the-box activities that are provided in Visual Studio 2010. Visual Studio 2010 provides 30 general workflow activities along with 26 Sharepoint specific activities. Not all of the 30 general workflow activities are supported in a SharePoint environment. The list of activities that are not supported in SharePoint environment is provided in Chapter 2. We have used many of the supported activities in our recipes in Chapter 2 and we will continue to use them in this chapter as well. There can be situations where we supported out-of-the-box activities which would not provide the complete solution that is required for your workflow problem. In these situations you can always create your own custom activity. In this chapter, we will show you how to create your own custom activity.

The development of custom activity is a very important subject especially when we have to model a domain-specific problem as an...