aarebrot.net Frode's blog on Sharepoint and other stuff

How sloppiness and SPWorkflowTask.AlterTask() could inadvertantly lock your workflow task

Posted on October 19, 2011

The SPWorkflowTask.AlterTask() method is handy dandy. It allows us to alter task details from outside of the workflow itself. I was using it in a couple of custom task forms I had created to update the task based on some user input. It's pretty simple. You get a reference to the active workflow task item, create a hashtable that you populate with the data you want to change, then use AlterTask() to update the task.

This is pretty much exactly what I was doing, except I threw in an item.Update() after my SPWorkflowTask.AlterTask() call for good measure. I wasn't sure if the AlterTask() actually did an Update() internally so I figured it couldn't possibly hurt, right?