Adds a new item to the end of the collection.
Assembly: System (in System.dll)
The method adds a new item to the collection represented by the Items property. raises the AddingNew event. This allows you to add a new item by setting the NewObject property of the AddingNewEventArgs parameter to the new item. Otherwise, the new item is automatically created through its public default constructor.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.