Style.BaseStyle Property
Returns or sets an existing style on which you can base the formatting of another style. Read/write Object.
Namespace: Microsoft.Office.Interop.Word
Assembly: Microsoft.Office.Interop.Word (in microsoft.office.interop.word.dll)
Assembly: Microsoft.Office.Interop.Word (in microsoft.office.interop.word.dll)
To set this property, specify either the local name of the base style, an integer or a WdBuiltinStyle constant, or an object that represents the base style.