'Declaration Protected MustOverride Function OnAddNew() As Object
protected abstract object OnAddNew()
When overriding this method, derived classes should create a new DataPoint, add it to the Points collection, and return a reference to it.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, 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