Get the IDictionary that contains the index contents. The keys of the IDictionary are the return values from the IValueExtractor operating against the indexed IDictionary's values, and for each key, the corresponding value stored in the IDictionary is an ISet of keys to the indexed Dictionary. If the IMapIndex is known to be ordered, then the returned IDictionary object will be an instance of SortedList. The SortedList may or may not have an IComparer object associated with it. A client should assume that the returned IDictionary object is read-only and must not attempt to modify it.

public IDictionary IndexContents { get; }