Building the Custom Activities for Workflow

Hello All,

                   This is how Custom activity  can be added for sharepoint designer workflow
step        1)Select Custom Workflow Library project

step 2) Set the required properties in Code behind which will act like parameters

step 3)Create .actions file as shown in following Images

step 4) Make its entry in web.config under authorized types

and Configure the workflow in sharepoint designer. For more info  watch the how to Custom Activity