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OnChangeEventHandler Delegate

Handles the OnChange event that is fired when a notification is received for any of the commands associated with a SqlDependency object.

Namespace:  System.Data.SqlClient
Assembly:  System.Data (in System.Data.dll)
public delegate void OnChangeEventHandler(
	Object sender,
	SqlNotificationEventArgs e
)

Parameters

sender
Type: System.Object

The source of the event.

e
Type: System.Data.SqlClient.SqlNotificationEventArgs

A SqlNotificationEventArgs object that contains the event data.

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, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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