How to close Page Tab under _tabControl

[MonoAutomation]

Hello,
I have a mainTab(_tabControl) under this couple of child tabs(PageTabs) ,am able to keep focus and select the required tab but problem is not able to close that opened page tab,each tab is having close button but when i use UI verify,the page tab is getting identified but not 'x' button. i tried to see childs ,ascendants using treewalker but no luck,

can any one help me how perform action to close page tab using White/UIACOM Wrapper/UI Automation?
my application:
Windows form,Infragistics controls,

NOTE: here am using TreeWalker ,since using White framework am not able to identify tabs or Grids or menubar or trees. its because my application controls are using 3rd party Infragistics controls.

[drogit]

hey buddy, i know i am a bit late but did you ever get this to work? i have same problem. i did find a work/hack around for time being but rather do it right way