Occurs when the data storage that the IHierarchicalDataSource interface represents has changed.
Assembly: System.Web (in System.Web.dll)
The event is raised when a change is made to the data source control's properties, such as changing the DataFile property of an XmlDataSource control, or changing the data in the underlying data storage, which happens when XML nodes are changed by an edit action performed by an XmlDataSource control.
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.