I am working on customizing TFS workitem template for quite a while. But I am not able to find anyway in which you can restrict particular field in template - say "Priority" - depending on user. I mean I have TFS users A,B,C and D and I have requirement like - Priority field should be changeable only by A and B. I tried using VALIDUSER rule on Priority field but failed to succeed.
I think you want to use a READONLY
field with a for
\ notfor
specified.
Example:
<READONLY for="DevelopmentUserGroup" notfor="AdminUserGroup" />