I will explain my question with an example. Lets consider TFS "Bug" work item type. In the bug work item type there is a "Developer" and "Tester" dropdown. Using the inbuilt rule types we can only assign "VALIDUSER" to each drop down. This displays all the windows user in the drop down. I want to be able to create a custom subteam under "TeamMembers" node and assign members to the sub team. For example as shown in the below snapshot:
The "Developer" drop down should display users from the new "Developer" subteam and not all the VALIDUSER. Similarly "Tester" drop down should display users from the new "Tester" subteam.
I am thinking of creating a custom work item control and then call the TFS API to fetch the custom subteam members.
If anyone has worked on this before or have any better (and simple :)) ideas to achieve the above please suggest.
Update
I just created a custom work item control and called TFS API to get the list of members in the custom group. So this is done. But I would still like to know if there is a better way to achieve same results.