Definitions

Description:
A base class that supports the addition of new parameter definitions.

Remarks:
There are two derivations of this class, one of which handles external parameters and another which handles internal parameters.

Inheritance Hierarchy:
System.Object
  Autodesk.Revit.DB.Definitions
    Autodesk.Revit.DB.ExternalDefinitions
    Autodesk.Revit.DB.InternalDefinitions

public class Definitions : IEnumerable<Definition>, 
	IDisposable

Public Class Definitions _
	Implements IEnumerable(Of Definition), IDisposable

public ref class Definitions : IEnumerable<Definition^>, 
	IDisposable

Name	Return Type	Description
C Definitions()	None	Constructs an empty set of parameter definitions.

Name	Return Type	Description
M Contains(Definition)	bool	Tests for the existence of a definition within the set.
M Create(ExternalDefinitionCreationOptions)	nullNothingnullptr	Creates a new parameter definition using specified options.
M Dispose()	None	Releases all resources used by the
M GetBasicIEnumerator()	IEnumerator	Returns an enumerator that iterates through a collection.
M GetEnumerator()	The enumerator.	Retrieves an enumerator to the collection.

Name	Return Type	Description
P IsEmpty	bool	Identifies if the definitions collection is empty.
P Item	Definition	Retrieves a definition by a given name.
P Size	int	The number of definitions in the collection.