If it is executed as asynchronous it gets executed in a separate thread.
You could create a new "Full Name" calculated column and delete the Title column, but making Title a calculated column just feels like a cleaner solution.
Custom Actions control features in Share Point such as the Edit Control Block, the Site Actions menu, toolbars, and the links within the Site Settings page.
Learn how to leverage Custom Actions to extend the Share Point User Interface.
Next we’ll write the updating part of the code, as shown below.
In the updating scenario we will pass the unique ID of the item rather than new GUID which we passed in the above adding scenario.