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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.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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