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SqlDependency::OnChange Event
Visual Studio 2010
Occurs when a notification is received for any of the commands associated with this SqlDependency object.
Assembly: System.Data (in System.Data.dll)
OnChange occurs when the results for the associated command change. If you are not using OnChange, you can check the HasChanges property to determine whether the query results have changed.
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.
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.
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