Copying field values when creating a child Workitem in TFS?

We have a TFS team project using the Agile process template. We have added a string field to the User Story and Task work item types. This 开发者_高级运维field is a dropdown bound to a global list.

When you create a new linked workitem from an existing workitem (using the NEW button on the LINKS tab for example), the Assigned To, Area and Iteration values are copied to the new linked item.

We would like to also copy the value for the string field that we've added, so that it does not have to be set manually.

Any ideas if this is possible using TFS customization?

It's possible... but not with "out of the box" work item features. You'd need to write some custom code with the SDK (http://archive.msdn.microsoft.com/tfssdk) to get this behavior.