Represents a collection of order (dynamic and static) properties represented as CQGOrderProperty objects.

This collection is used in CQGOrder to access the order dynamic and static properties, and in OrderChanged event as a parameter passing the changed properties.
Access to an item in this collection is made by property type.
See Accessing non-existent collection items for details on accessing items that do not exist in the collection.
See the usage of CQGOrderProperties collection in OrderChanged event's example section. See examples on retrieving order trader ID, average fill, and other members of the Properties collection in the CQGOrderProperties.Item property's example section.