Classe TaskUILifetimeHintAttribute

Defines a task lifetime attribute that specifies how expensive a user interface is to re-create.

Hierarquia de herança

System. . :: . .Object
  System. . :: . .Attribute
    Microsoft.SqlServer.Dts.Runtime.Design..::..TaskUILifetimeHintAttribute

Namespace:  Microsoft.SqlServer.Dts.Runtime.Design
Assembly:  Microsoft.SqlServer.Dts.Design (em Microsoft.SqlServer.Dts.Design.dll)

Sintaxe

'Declaração
<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple := False)> _
Public NotInheritable Class TaskUILifetimeHintAttribute _
    Inherits Attribute
'Uso
Dim instance As TaskUILifetimeHintAttribute

[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = false)]
public sealed class TaskUILifetimeHintAttribute : Attribute

[AttributeUsageAttribute(AttributeTargets::Class, AllowMultiple = false)]
public ref class TaskUILifetimeHintAttribute sealed : public Attribute

[<SealedAttribute>]
[<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = false)>]
type TaskUILifetimeHintAttribute =  
    class
        inherit Attribute
    end

public final class TaskUILifetimeHintAttribute extends Attribute

O tipo TaskUILifetimeHintAttribute expõe os membros a seguir.

Construtores

	Nome	Descrição
	TaskUILifetimeHintAttribute	Initializes a new instance of the TaskUILifetimeHintAttribute class.

Início

Propriedades

	Nome	Descrição
	TaskUILifetimeHint	Provides an estimate, stored as a lifetime hint, about how expensive it is to re-create a user interface.
	TypeId	(Herdado de Attribute.)

Início

Métodos

	Nome	Descrição
	Equals	(Herdado de Attribute.)
	Finalize	(Herdado de Object.)
	GetHashCode	(Herdado de Attribute.)
	GetType	(Herdado de Object.)
	IsDefaultAttribute	(Herdado de Attribute.)
	Match	(Herdado de Attribute.)
	MemberwiseClone	(Herdado de Object.)
	ToString	(Herdado de Object.)

Início

Implementações de interfaces explícitas

	Nome	Descrição
	_Attribute. . :: . .GetIDsOfNames	(Herdado de Attribute.)
	_Attribute. . :: . .GetTypeInfo	(Herdado de Attribute.)
	_Attribute. . :: . .GetTypeInfoCount	(Herdado de Attribute.)
	_Attribute. . :: . .Invoke	(Herdado de Attribute.)

Início

Comentários

In Integration Services, this attribute allows you to specify how expensive it is to recreate a specific user interface. For example, if a user interface displays a drop-down list with only five fields, all obtained from the local computer, the user interface may be fairly fast and inexpensive to process. However, if a drop-down list in a user interface contains information that was gathered from a remote server, or from across a network that was slow, the user interface may be expensive and time-consuming to re-create. To keep the user interface in memory until the package designer is closed, set the TaskUILifetimeHint property to RecreationExpensive. To dispose of the user interface as soon as the user closes the dialog, set the TaskUILifetimeHint property to RecreationInexpensive.

Segurança de thread

Qualquer membro público static (Shared no Visual Basic) desse tipo é seguro para threads. Não há garantia de que qualquer membro de instância seja seguro para threads.

Consulte também

Referência

Namespace Microsoft.SqlServer.Dts.Runtime.Design