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.

Hiérarchie d'héritage

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

Espace de noms :  Microsoft.SqlServer.Dts.Tasks.ScriptTask
Assembly :  Microsoft.SqlServer.ScriptTask (en Microsoft.SqlServer.ScriptTask.dll)

Syntaxe

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

Le type ScriptTask expose les membres suivants.

Constructeurs

  Nom Description
Méthode publique ScriptTask Initializes a new instance of the ScriptTask class.

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Propriétés

  Nom Description
Propriété publique BreakpointManager Returns the BreakpointManager used for controlling breakpoints on this task.
Propriété publique Breakpoints Returns an array of breakpoints set on this task.
Propriété publique 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.
Propriété publique EntryPoint Gets or sets the name of the class that is executed as the entry point.
Propriété publique ExecutionValue Returns a user-defined object. This field is read-only. (remplace Task. . :: . .ExecutionValue.)
Propriété publique ReadOnlyVariables Gets or sets the comma-delimited list of existing variables made available to the package by the user for read-only access.
Propriété publique ReadWriteVariables Gets or sets the comma-delimited list of existing variables made available to the package by the user for read/write access.
Propriété publique ScriptingEngine Gets the VSTATaskScriptingEngine class.
Propriété publique ScriptLanguage Gets or sets the programming language in which the script is written.
Propriété publique ScriptLoaded Gets a value indicating whether the task contains custom script.
Propriété publique ScriptProjectName Gets or sets the name of the script project.
Propriété publique ScriptStorage Gets the [VSTAScriptProjectStorage].
Propriété publique 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.
Propriété publique Version *** Member deprecated; see Remarks. ***    Returns the version of the task. This property is read-only. (hérité de Task.)

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Méthodes

  Nom Description
Méthode publique AcceptBreakpointManager Passes a BreakpointManager to the task. This method is called by the runtime and is not used in code.
Méthode publique CanUpdate *** Member deprecated; see Remarks. ***    A Boolean that indicates whether the new package XML can update the old package XML. (hérité de Task.)
Méthode publique Equals Determines whether two object instances are equal. (hérité de DtsObject.)
Méthode publique Execute Runs the Script task. (remplace Task. . :: . .Execute(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging, Object).)
Méthode protégée Finalize Releases all resources used by the ScriptTask. (remplace Object. . :: . .Finalize() () () ().)
Méthode publique GetConnectionID Gets a String containing the ID of the connection. (hérité de Task.)
Méthode publique GetConnectionName Gets a String containing the name of the connection. (hérité de Task.)
Méthode publique GetHashCode Returns the hash code for this instance. (hérité de DtsObject.)
Méthode publique GetType (hérité de Object.)
Méthode publique InitializeTask Initializes the properties associated with the Script task. This method is called by the runtime and is not used in code. (remplace Task. . :: . .InitializeTask(Connections, VariableDispenser, IDTSInfoEvents, IDTSLogging, EventInfos, LogEntryInfos, ObjectReferenceTracker).)
Méthode publique 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.
Méthode protégée MemberwiseClone (hérité de Object.)
Méthode publique ReportBreakpointChanges Infrastructure.
Méthode publique ResumeExecution Resumes execution of the task or container by the run-time engine after pausing.
Méthode publique 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.
Méthode publique SetUniqueScriptProjectName Sets the unique name of the script project.
Méthode publique SuspendExecution Indicates that the executable must suspend execution. This method is called by the run-time engine.
Méthode publique ToString (hérité de Object.)
Méthode publique Update *** Member deprecated; see Remarks. ***    This method updates the old package XML with the new package XML if CanUpdate is set to true. (hérité de Task.)
Méthode publique Validate Verifies that the component is correctly configured. (remplace Task. . :: . .Validate(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging).)

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Notes

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 Tâche de script and Codage et débogage de la tâche de script.

Exemples

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

Sécurité des threads

Tous les membres publics static (Shared dans Visual Basic) de ce type sont thread-safe. Tous les membres de l'instance ne sont pas garantis comme étant thread-safe.