public virtual IEnumerator<KeyValuePair<DuctShape, DuctSizes>> GetEnumerator()
Public Overridable Function GetEnumerator As IEnumerator(Of KeyValuePair(Of DuctShape, DuctSizes))
public: virtual IEnumerator<KeyValuePair<DuctShape, DuctSizes^>>^ GetEnumerator()
abstract GetEnumerator : unit -> IEnumerator<KeyValuePair<DuctShape, DuctSizes>> override GetEnumerator : unit -> IEnumerator<KeyValuePair<DuctShape, DuctSizes>>