OverrideMode Enumeration
IIS 7.0
Specifies the override behavior of a configuration section.
Assembly: Microsoft.Web.Administration (in Microsoft.Web.Administration.dll)
Configuration sections are locked if child objects in the configuration hierarchy are denied permission to override values in the parent configuration section. However, configuration sections can explicitly allow override values to be defined at lower configuration levels, or child objects can be configured to inherit the override mode from a parent section.