When overridden in a derived class, adds a new item to the underlying list.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The method adds a new item to the underlying list by using the default constructor for that item's type. is intended primarily to be used by programmers adding complex data-binding support to their custom component.
is commonly implemented using the following pattern that allows application programmers to inject their own code for creating customized items:
raises the AddingNew event.
The programmer can supply a custom item by handling the AddingNew event and setting the NewObject property of the AddingNewEventArgs parameter to the new item. Otherwise, the component should create an item using the default constructor.
If the data source does not implement the IEditableObject interface, the item is immediately added to the data source and underlying list. If this interface is supported, then the addition is transacted by the CancelCurrentEdit and EndCurrentEdit methods.
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.