Classe ScriptTask

Defines the classes for the Script task, which lets developers write custom code to perform functions that are not available in the built-in tasks provided by Integration Services.

Hierarquia de herança

System. . :: . .Object
  Microsoft.SqlServer.Dts.Runtime. . :: . .DtsObject
    Microsoft.SqlServer.Dts.Runtime. . :: . .Task
      Microsoft.SqlServer.Dts.Tasks.ScriptTask..::..ScriptTask

Namespace:  Microsoft.SqlServer.Dts.Tasks.ScriptTask
Assembly:  Microsoft.SqlServer.ScriptTask (em Microsoft.SqlServer.ScriptTask.dll)

Sintaxe

'Declaração
<GuidAttribute("2EC4E475-058D-3590-8909-279F833D8B9C")> _
<ComVisibleAttribute(True)> _
Public Class ScriptTask _
    Inherits Task _
    Implements IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist
'Uso
Dim instance As ScriptTask

[GuidAttribute("2EC4E475-058D-3590-8909-279F833D8B9C")]
[ComVisibleAttribute(true)]
public class ScriptTask : Task, IDTSBreakpointSite, 
    IDTSSuspend, IDTSComponentPersist

[GuidAttribute(L"2EC4E475-058D-3590-8909-279F833D8B9C")]
[ComVisibleAttribute(true)]
public ref class ScriptTask : public Task, 
    IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

[<GuidAttribute("2EC4E475-058D-3590-8909-279F833D8B9C")>]
[<ComVisibleAttribute(true)>]
type ScriptTask =  
    class
        inherit Task
        interface IDTSBreakpointSite
        interface IDTSSuspend
        interface IDTSComponentPersist
    end

public class ScriptTask extends Task implements IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

O tipo ScriptTask expõe os membros a seguir.

Construtores

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

Início

Propriedades

	Nome	Descrição
	BreakpointManager	Returns the BreakpointManager used for controlling breakpoints on this task.
	Breakpoints	Returns an array of breakpoints set on this task.
	DebugMode	Gets or sets a value indicating whether the task is running in debug mode, and whether it should raise the OnBreakpointHit event while the task is running.
	EntryPoint	Gets or sets the name of the class that is executed as the entry point.
	ExecutionValue	Returns a user-defined object. This field is read-only. (Substitui Task. . :: . .ExecutionValue.)
	ReadOnlyVariables	Gets or sets the comma-delimited list of existing variables made available to the package by the user for read-only access.
	ReadWriteVariables	Gets or sets the comma-delimited list of existing variables made available to the package by the user for read/write access.
	ScriptingEngine	Gets the VSTATaskScriptingEngine class.
	ScriptLanguage	Gets or sets the programming language in which the script is written.
	ScriptLoaded	Gets a value indicating whether the task contains custom script.
	ScriptProjectName	Gets or sets the name of the script project.
	ScriptStorage	Gets the [VSTAScriptProjectStorage].
	SuspendRequired	Gets or sets a Boolean indicating whether a task should suspend execution when the task encounters a breakpoint. This value is set by the run-time engine for tasks and containers when a breakpoint is encountered.
	Version	*** Member deprecated; see Remarks. ***    Returns the version of the task. This property is read-only. (Herdado de Task.)

Início

Métodos

	Nome	Descrição
	AcceptBreakpointManager	Passes a BreakpointManager to the task. This method is called by the runtime and is not used in code.
	CanUpdate	*** Member deprecated; see Remarks. ***    A Boolean that indicates whether the new package XML can update the old package XML. (Herdado de Task.)
	Equals	Determines whether two object instances are equal. (Herdado de DtsObject.)
	Execute	Runs the Script task. (Substitui Task. . :: . .Execute(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging, Object).)
	Finalize	Releases all resources used by the ScriptTask. (Substitui Object. . :: . .Finalize() () () ().)
	GetConnectionID	Gets a String containing the ID of the connection. (Herdado de Task.)
	GetConnectionName	Gets a String containing the name of the connection. (Herdado de Task.)
	GetHashCode	Returns the hash code for this instance. (Herdado de DtsObject.)
	GetType	(Herdado de Object.)
	InitializeTask	Initializes the properties associated with the Script task. This method is called by the runtime and is not used in code. (Substitui Task. . :: . .InitializeTask(Connections, VariableDispenser, IDTSInfoEvents, IDTSLogging, EventInfos, LogEntryInfos, ObjectReferenceTracker).)
	LoadFromXML	Loads the Script task data from XML. This method is not callable by your application code. To load a package saved as .xml, use the Application..::..LoadPackage method.
	MemberwiseClone	(Herdado de Object.)
	ReportBreakpointChanges	Infraestrutura.
	ResumeExecution	Resumes execution of the task or container by the run-time engine after pausing.
	SaveToXML	Saves the Script task component to XML. This method is not callable by your application code. To save a package as .xml, use the Application..::..SaveToXml method.
	SetUniqueScriptProjectName	Sets the unique name of the script project.
	SuspendExecution	Indicates that the executable must suspend execution. This method is called by the run-time engine.
	ToString	(Herdado de Object.)
	Update	*** Member deprecated; see Remarks. ***    This method updates the old package XML with the new package XML if CanUpdate is set to true. (Herdado de Task.)
	Validate	Verifies that the component is correctly configured. (Substitui Task. . :: . .Validate(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging).)

Início

Comentários

The ScriptTask class defines the Script task and handles the interaction of the Script task with the runtime and with Visual Studio for Applications.

For more information, see Tarefa Script and Codificando e depurando a tarefa Script.

Exemplos

The following code sample, implemented in a console application, adds a ScriptTask to the package and displays the default values of some of its properties.

using System;
using Microsoft.SqlServer.Dts.Runtime;

namespace ScriptTaskCS
{
  class Program
  {
    static void Main(string[] args)
    {
      Package pkg = new Package();
      string newLine = System.Environment.NewLine;

      Executable exe = pkg.Executables.Add("STOCK:ScriptTask");
      TaskHost thTask = (TaskHost)exe;

      string taskInfo;
      taskInfo = 
        
        "Entry point: " + 
        thTask.Properties["EntryPoint"].GetValue(thTask) + newLine + 
        "Script Language: " + 
        thTask.Properties["ScriptLanguage"].GetValue(thTask) + newLine + 
        "ReadOnlyVariables: " + 
        thTask.Properties["ReadOnlyVariables"].GetValue(thTask) + newLine + 
        "ReadWriteVariables: " + 
        thTask.Properties["ReadWriteVariables"].GetValue(thTask);

      Console.WriteLine(taskInfo);
      Console.Read();
    }
  }
}

Imports Microsoft.SqlServer.Dts.Runtime

Module Module1

  Sub Main()

    Dim pkg As New Package
    Dim newLine As String = System.Environment.NewLine

    Dim exe As Executable = pkg.Executables.Add("STOCK:ScriptTask")
    Dim thTask As TaskHost = CType(exe, TaskHost)

    Dim taskInfo As String
    taskInfo = 
      
      "Entry point: " & _
      thTask.Properties("EntryPoint").GetValue(thTask) & newLine & _
      "Script Language: " & _
      thTask.Properties("ScriptLanguage").GetValue(thTask) & newLine & _
      "ReadOnlyVariables: " & _
      thTask.Properties("ReadOnlyVariables").GetValue(thTask) & newLine & _
      "ReadWriteVariables: " & _
      thTask.Properties("ReadWriteVariables").GetValue(thTask)

    Console.WriteLine(taskInfo)
    Console.Read()

  End Sub

End Module

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.Tasks.ScriptTask