The Categories type exposes the following members.

Methods

	Name	Description
	Clear	Removes every category from the map, rendering it empty. (Inherited from CategoryNameMap.)
	Contains	Identifies if a category which has the specified name is in the list of top-level categories. (Overrides CategoryNameMapContains(String).)
	Dispose	Causes the object to release immediately any resources it may be utilizing. (Inherited from APIObject.)
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Erase	Removes a category with the specified name from the map. (Inherited from CategoryNameMap.)
	ForwardIterator	Retrieves a forward moving iterator to the map. (Overrides CategoryNameMapForwardIterator.)
	GetEnumerator	Retrieves a forward moving iterator to the map. (Overrides CategoryNameMapGetEnumerator.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Insert	Inserts the specified category with the specified name into the map. (Overrides CategoryNameMapInsert(String, Category).)
	NewSubcategory	Add a new subcategory into the Autodesk Revit document.
	ReverseIterator	Retrieves a backward moving iterator to the map. (Overrides CategoryNameMapReverseIterator.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Properties

	Name	Description
	IsEmpty	Whether or not the list of top-level categories is empty. (Overrides CategoryNameMapIsEmpty.)
	IsReadOnly	Identifies if the object is read-only or modifiable. (Inherited from APIObject.)
	ItemString	Gets a category which has the specified name from this list of top-level categories. (Overrides CategoryNameMapItemString.)
	ItemBuiltInCategory	Retrieves a category object corresponding to a BuiltInCategory id.
	Size	The total number of top-level categories in the document. (Overrides CategoryNameMapSize.)