Used for designating collection elements in the dictionary returned by Serialize and in the dictionary passed into the Deserialize. Basically the ObjectSerializationInfo for a collection will return a property with this name from its SerializedProperties collection and dictionaries from Serialize method and Deserialize methods will have an entry with this key and value that is a list of the collection elements.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
