SqlTriggerAttribute Class
 

Used to mark a method definition in an assembly as a trigger in SQL Server. The properties on the attribute reflect the physical attributes used when the type is registered with SQL Server. This class cannot be inherited.

Namespace:   Microsoft.SqlServer.Server
Assembly:  System.Data (in System.Data.dll)

SystemObject
   SystemAttribute
    Microsoft.SqlServer.ServerSqlTriggerAttribute

[SerializableAttribute]
[AttributeUsageAttribute(AttributeTargets.Method, AllowMultiple = false, 
	Inherited = false)]
public sealed class SqlTriggerAttribute : Attribute
[SerializableAttribute]
[AttributeUsageAttribute(AttributeTargets::Method, AllowMultiple = false, 
	Inherited = false)]
public ref class SqlTriggerAttribute sealed : Attribute
[<Sealed>]
[<SerializableAttribute>]
[<AttributeUsageAttribute(AttributeTargets.Method, AllowMultiple = false,
    Inherited = false)>]
type SqlTriggerAttribute = 
    class
        inherit Attribute
    end
<SerializableAttribute>
<AttributeUsageAttribute(AttributeTargets.Method, AllowMultiple := False,
	Inherited := False)>
Public NotInheritable Class SqlTriggerAttribute
	Inherits Attribute
NameDescription
System_CAPS_pubmethod SqlTriggerAttribute

An attribute on a method definition in an assembly, used to mark the method as a trigger in SQL Server.

NameDescription
System_CAPS_pubproperty

The type of trigger and what data manipulation language (DML) action activates the trigger.

System_CAPS_pubproperty

The name of the trigger.

System_CAPS_pubproperty

The table to which the trigger applies.

System_CAPS_pubproperty

When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)

NameDescription
System_CAPS_pubmethod Equals

This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)

System_CAPS_pubmethod GetHashCode

Returns the hash code for this instance.(Inherited from Attribute.)

System_CAPS_pubmethod GetType

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethod IsDefaultAttribute

When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)

System_CAPS_pubmethod Match

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)

System_CAPS_pubmethod ToString

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetIDsOfNames

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetTypeInfo

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetTypeInfoCount

Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeInvoke

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

See "CLR Triggers" in SQL Server 2005 Books Online for more information on CLR triggers and examples.

The following example shows the SqlTriggerAttribute specifying the name of the trigger, the target table, and the event that will fire the trigger. See SqlTriggerContext for the full trigger example.

[SqlTrigger(Name = @"SalesAudit", Target = "[dbo].[SalesInfo]", Event = "FOR INSERT")]
public static void SalesAudit()
{
   // Get the trigger context.
   SqlTriggerContext triggContext = SqlContext.TriggerContext;

   switch (triggContext.TriggerAction)
   {
      case TriggerAction.Insert:

      // Do something in response to the INSERT.

      break;
   }
}
<SqlTrigger(Name:="SalesAudit", Target:="[dbo].[SalesInfo]", Event:="FOR INSERT")> _
Public Shared Sub SalesAudit()

   Dim triggContext As SqlTriggerContext

   ' Get the trigger context.
   triggContext = SqlContext.TriggerContext        

   Select Case triggContext.TriggerAction
      Case TriggerAction.Insert

      ' Do something in response to the INSERT.

   End Select

End Sub
.NET Framework
Available since 2.0

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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