This object exposes the following properties, methods and events.
| Property | Description | 
| AddNew | Retrieves an object from the collection. If no object with the specified name exists, one is added. | 
| Count | Retrieves the number of objects in the collection. | 
| Item | Retrieves the object located at the specified index. | 
| ItemsByKey | Retrieves a sorted collection of objects that meet the specified criteria. | 
| ItemsWithMetaProperty | Retrieves a collection of objects all associated with the specified MetaProperty object. | 
| ItemsWithMetaPropertyCond | Retrieves a collection of objects that meet the condition of a specified MetaPropertyCondition object. | 
| ItemWithID | Retrieves an object from the collection by unique identifier. | 
| ItemWithKey | Retrieves an object by using the collection's key metaproperty. |