That works perfectly. I'm trying to accomplish that in the field2 drop down as well. So far i've tried:
not(my:field2 = current()/preceding-sibling::my:TOC/my:TOCgroup/my:group2/my:field2)
not(my:field2 = current()/following-sibling::my:TOC/my:TOCgroup/my:group2/my:field2)
not(my:Department = current()/preceding-sibling::my:Department)
not(my:Department = current()/following-sibling::my:Department)
I'm wondering if this one is possible since i have the value set as my:TotalGrossDepartmentArea/my:Total and the display set as my:Department if this one will actually filter correctly. Any ideas.