SqlTriggerAttribute SqlTriggerAttribute SqlTriggerAttribute SqlTriggerAttribute Class

Definition

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.

public ref class SqlTriggerAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Method, AllowMultiple=false, Inherited=false)]
[System.Serializable]
public sealed class SqlTriggerAttribute : Attribute
type SqlTriggerAttribute = class
    inherit Attribute
Public NotInheritable Class SqlTriggerAttribute
Inherits Attribute
Inheritance
SqlTriggerAttributeSqlTriggerAttributeSqlTriggerAttributeSqlTriggerAttribute
Attributes

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

Remarks

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

Constructors

SqlTriggerAttribute() SqlTriggerAttribute() SqlTriggerAttribute() SqlTriggerAttribute()

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

Properties

Event Event Event Event

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

Name Name Name Name

The name of the trigger.

Target Target Target Target

The table to which the trigger applies.

TypeId TypeId TypeId TypeId

When implemented in a derived class, gets a unique identifier for this Attribute.

(Inherited from Attribute)

Methods

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Returns a value that indicates whether this instance is equal to a specified object.

(Inherited from Attribute)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Returns the hash code for this instance.

(Inherited from Attribute)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute() 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)
Match(Object) Match(Object) Match(Object) Match(Object)

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(Inherited from Attribute)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Explicit Interface Implementations

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.

(Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.

(Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32)

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

(Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

Applies to