SqlNotificationInfo Enum

Definition

Namespace:

System.Data.SqlClient

Assembly:

System.Data.dll

This enumeration provides additional information about the different notifications that can be received by the dependency event handler.

public enum class SqlNotificationInfo

public enum SqlNotificationInfo

type SqlNotificationInfo = 

Public Enum SqlNotificationInfo

Inheritance

Object

ValueType

Enum

SqlNotificationInfo

Fields

Name	Value	Description
AlreadyChanged	-2	The SqlDependency object already fired, and new commands cannot be added to it.
Unknown	-1	Used when the info option sent by the server was not recognized by the client.
Truncate	0	One or more tables were truncated.
Insert	1	Data was changed by an INSERT statement.
Update	2	Data was changed by an UPDATE statement.
Delete	3	Data was changed by a DELETE statement.
Drop	4	An underlying object related to the query was dropped.
Alter	5	An underlying server object related to the query was modified.
Restart	6	The server was restarted (notifications are sent during restart.).
Error	7	An internal server error occurred.
Query	8	A SELECT statement that cannot be notified or was provided.
Invalid	9	A statement was provided that cannot be notified (for example, an UPDATE statement).
Options	10	The SET options were not set appropriately at subscription time.
Isolation	11	The statement was executed under an isolation mode that was not valid (for example, Snapshot).
Expired	12	The SqlDependency object has expired.
Resource	13	Fires as a result of server resource pressure.
PreviousFire	14	A previous statement has caused query notifications to fire under the current transaction.
TemplateLimit	15	The subscribing query causes the number of templates on one of the target tables to exceed the maximum allowable limit.
Merge	16	Used to distinguish the server-side cause for a query notification firing.

Remarks

The SqlNotificationInfo enumeration is referenced by an instance of the SqlNotificationEventArgs class.

See also

• ADO.NET Overview