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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: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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