12.1. Fault handling and debugging workflows

If you don’t properly handle exceptions in the workflow and an error occurs, you’ll get the dreaded Error Occurred string in the workflow status, without a clue as to what went wrong. You’re left with debugging your workflow and, if you don’t know how to debug, you’re up a creek.

Let’s start with what’s easy—debugging. You debug your workflows almost the same way as any other .NET application you build. Within your workflow’s code view, right-click on the line of code where you want to start debugging and choose Breakpoint > Insert Breakpoint (figure 12.1). Also note that you can debug the activities on the templates. To do this, right-click the activity you want to debug and select Breakpoint > Insert Breakpoint again.