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Clase ExpressionTask

  • Artículo

Contains the members used to configure and run an Expression task.

Jerarquía de herencia

System.Object
  Microsoft.SqlServer.Dts.Runtime.DtsObject
    Microsoft.SqlServer.Dts.Runtime.Task
      Microsoft.SqlServer.Dts.Tasks.ExpressionTask.ExpressionTask

Espacio de nombres:  Microsoft.SqlServer.Dts.Tasks.ExpressionTask
Ensamblado:  Microsoft.SqlServer.ExpressionTask (en Microsoft.SqlServer.ExpressionTask.dll)

Sintaxis

'Declaración
<GuidAttribute("2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")> _
Public Class ExpressionTask _
    Inherits Task _
    Implements IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist
'Uso
Dim instance As ExpressionTask

[GuidAttribute("2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")]
public class ExpressionTask : Task, 
    IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

[GuidAttribute(L"2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")]
public ref class ExpressionTask : public Task, 
    IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

[<GuidAttribute("2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")>]
type ExpressionTask =  
    class 
        inherit Task 
        interface IDTSBreakpointSite 
        interface IDTSSuspend 
        interface IDTSComponentPersist 
    end

public class ExpressionTask extends Task implements IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

El tipo ExpressionTask expone los siguientes miembros.

Constructores

  Nombre Descripción
Método público ExpressionTask Initializes a new instance of the ExpressionTask class.

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Propiedades

  Nombre Descripción
Propiedad pública DebugMode Gets or sets a Boolean that indicates whether a task should determine whether breakpoints are enabled.
Propiedad pública ExecutionValue Returns the result of the task execution. (Invalida Task.ExecutionValue.)
Propiedad pública Expression Gets or sets the expression to be executed by the task.
Propiedad pública SuspendRequired Gets or sets a Boolean that indicates whether tasks should suspend when they encounter a breakpoint. This value is set by the runtime engine for tasks and containers when a breakpoint is encountered.
Propiedad pública Version *** Member deprecated; see Remarks. ***    Returns the version of the task. This property is read-only. (Se hereda de Task.)

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Métodos

  Nombre Descripción
Método público AcceptBreakpointManager Called by the run-time engine when a task or container is created, and is passed a BreakpointManager to enable the task to create, remove, and check the status of breakpoints. This method is called by the runtime and is not used in code.
Método público CanUpdate *** Member deprecated; see Remarks. ***    A Boolean that indicates whether the new package XML can update the old package XML. (Se hereda de Task.)
Método público Equals Determines whether two object instances are equal. (Se hereda de DtsObject.)
Método público Execute Runs the task. (Invalida Task.Execute(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging, Object).)
Método protegido Finalize (Se hereda de Object.)
Método público GetConnectionID Gets a String containing the ID of the connection. (Se hereda de Task.)
Método público GetConnectionName Gets a String containing the name of the connection. (Se hereda de Task.)
Método público GetHashCode Returns the hash code for this instance. (Se hereda de DtsObject.)
Método público GetType (Se hereda de Object.)
Método público InitializeTask Initializes the properties associated with the task. This method is called by the runtime and is not used in code. (Se hereda de Task.)
Método público LoadFromXML Loads the definition of the task, in XML format, from the XML definition of the package.
Método protegido MemberwiseClone (Se hereda de Object.)
Método público ResumeExecution Resumes execution of the task after pausing. The task or container is resumed by the runtime engine.
Método público SaveToXML Saves the definition of the task, in XML format, into the XML definition of the package.
Método público SuspendExecution Indicates that the executable needs to suspend. This method is called by the runtime engine.
Método público ToString (Se hereda de Object.)
Método público Update *** Member deprecated; see Remarks. ***    This method updates the old package XML with the new package XML if CanUpdate is set to true. (Se hereda de Task.)
Método público Validate Verifies that the task is properly configured. (Invalida Task.Validate(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging).)
Método público ValidateExpression Verifies that the expression is properly configured.

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Seguridad para subprocesos

Cualquier miembro público static (Shared en Visual Basic) de este tipo es seguro para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.

Vea también

Referencia

Espacio de nombres Microsoft.SqlServer.Dts.Tasks.ExpressionTask