Display TFS Work Item edit form

The form layout for a workitem is stored in the DisplayForm field. How can I generat开发者_开发百科e a form with that information?

check this: http://msdn.microsoft.com/en-us/magazine/cc163443.aspx#S5

and this: http://social.msdn.microsoft.com/Forums/en-US/tfsworkitemtracking/thread/4576b799-c284-4848-b381-1361fee5685c/