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 CategoryNameMap Contains(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 CategoryNameMap ForwardIterator .)
	GetEnumerator	Retrieves a forward moving iterator to the map. (Overrides CategoryNameMap GetEnumerator .)
	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 CategoryNameMap Insert(String, Category) .)
	NewSubcategory	Add a new subcategory into the Autodesk Revit document.
	ReverseIterator	Retrieves a backward moving iterator to the map. (Overrides CategoryNameMap ReverseIterator .)
	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 CategoryNameMap IsEmpty .)
	IsReadOnly	Identifies if the object is read-only or modifiable. (Inherited from APIObject .)
	Item String	Gets a category which has the specified name from this list of top-level categories. (Overrides CategoryNameMap Item String .)
	Item BuiltInCategory	Retrieves a category object corresponding to a BuiltInCategory id.
	Size	The total number of top-level categories in the document. (Overrides CategoryNameMap Size .)