Occurs when data methods are being called.
Assembly: System.Web (in System.Web.dll)
The purpose of this event is to give you an opportunity to specify that the data methods to be called are on a different object than the Page object.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.