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SqlNotificationType Enum


Describes the different notification types that can be received by an OnChangeEventHandler event handler through the SqlNotificationEventArgs parameter.

public enum class SqlNotificationType
public enum SqlNotificationType
type SqlNotificationType = 
Public Enum SqlNotificationType


Change 0

Data on the server being monitored changed. Use the SqlNotificationInfo item to determine the details of the change.

Subscribe 1

There was a failure to create a notification subscription. Use the SqlNotificationEventArgs object's SqlNotificationInfo item to determine the cause of the failure.

Unknown -1

Used when the type option sent by the server was not recognized by the client.


The SqlNotificationType enumeration is referenced by an instance of the SqlNotificationEventArgs class. This information is provided when a notification event is fired with the SqlDependency class.

Applies to

See also