Handles the OnChange event that is fired when a notification is received for any of the commands associated with a SqlDependency object.
public delegate void OnChangeEventHandler(
The OnChange event does not necessarily imply a change in the data. Other circumstances, such as time-out expired and failure to set the notification request, also generate OnChange.
Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1