RunTimeID is zero on the Toolbar button controls of winForm

Hi,

 When I am trying to access RunTimeId on button controls inside the toolbar of technology WinForm using method AutomationElement.GetRunTimeId() it is giving empty values but when I check with UISpy.exe the buttons have proper runtimeId.

Could you help me understand why this problem is coming and how to resolve???

Regards,

Nagasree.