BTreeMapBaseKey, ValueGetValueId Method (Key)

When Value type implements IOptimizedPersistable, you can use this function to get the Id of the persistent object instead of the entire object. Use for performance reasons in certain cases where reading the object isn't desired.

public ulong GetValueId(
	Key key
)

Public Function GetValueId ( 
	key As Key
) As ULong

public:
unsigned long long GetValueId(
	Key key
)

member GetValueId : 
        key : 'Key -> uint64