Freigeben über

ExpressionTask-Klasse

  • Artikel

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

Vererbungshierarchie

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

Namespace:  Microsoft.SqlServer.Dts.Tasks.ExpressionTask
Assembly:  Microsoft.SqlServer.ExpressionTask (in Microsoft.SqlServer.ExpressionTask.dll)

Syntax

'Declaration
<GuidAttribute("2EE7D9A9-DA39-4F6F-A1E4-804F1FBC544C")> _
Public Class ExpressionTask _
    Inherits Task _
    Implements IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist
'Usage
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

Der ExpressionTask-Typ macht folgende Elemente verfügbar.

Konstruktoren

  Name Beschreibung
Öffentliche Methode ExpressionTask Initializes a new instance of the ExpressionTask class.

Zum Anfang

Eigenschaften

  Name Beschreibung
Öffentliche Eigenschaft DebugMode Gets or sets a Boolean that indicates whether a task should determine whether breakpoints are enabled.
Öffentliche Eigenschaft ExecutionValue Returns the result of the task execution. (Überschreibt Task.ExecutionValue.)
Öffentliche Eigenschaft Expression Gets or sets the expression to be executed by the task.
Öffentliche Eigenschaft 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.
Öffentliche Eigenschaft Version *** Member deprecated; see Remarks. ***    Returns the version of the task. This property is read-only. (Geerbt von Task.)

Zum Anfang

Methoden

  Name Beschreibung
Öffentliche Methode 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.
Öffentliche Methode CanUpdate *** Member deprecated; see Remarks. ***    A Boolean that indicates whether the new package XML can update the old package XML. (Geerbt von Task.)
Öffentliche Methode Equals Determines whether two object instances are equal. (Geerbt von DtsObject.)
Öffentliche Methode Execute Runs the task. (Überschreibt Task.Execute(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging, Object).)
Geschützte Methode Finalize (Geerbt von Object.)
Öffentliche Methode GetConnectionID Gets a String containing the ID of the connection. (Geerbt von Task.)
Öffentliche Methode GetConnectionName Gets a String containing the name of the connection. (Geerbt von Task.)
Öffentliche Methode GetHashCode Returns the hash code for this instance. (Geerbt von DtsObject.)
Öffentliche Methode GetType (Geerbt von Object.)
Öffentliche Methode InitializeTask Initializes the properties associated with the task. This method is called by the runtime and is not used in code. (Geerbt von Task.)
Öffentliche Methode LoadFromXML Loads the definition of the task, in XML format, from the XML definition of the package.
Geschützte Methode MemberwiseClone (Geerbt von Object.)
Öffentliche Methode ResumeExecution Resumes execution of the task after pausing. The task or container is resumed by the runtime engine.
Öffentliche Methode SaveToXML Saves the definition of the task, in XML format, into the XML definition of the package.
Öffentliche Methode SuspendExecution Indicates that the executable needs to suspend. This method is called by the runtime engine.
Öffentliche Methode ToString (Geerbt von Object.)
Öffentliche Methode Update *** Member deprecated; see Remarks. ***    This method updates the old package XML with the new package XML if CanUpdate is set to true. (Geerbt von Task.)
Öffentliche Methode Validate Verifies that the task is properly configured. (Überschreibt Task.Validate(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging).)
Öffentliche Methode ValidateExpression Verifies that the expression is properly configured.

Zum Anfang

Threadsicherheit

Alle öffentlichen static (Shared in Visual Basic)-Elemente dieses Typs sind Threadsicher. Für Instanzelemente wird die Threadsicherheit nicht gewährleistet.

Siehe auch

Verweis

Microsoft.SqlServer.Dts.Tasks.ExpressionTask-Namespace