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Classe ExpressionTask

  • Articolo

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

Gerarchia di ereditarietà

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

Spazio dei nomi  Microsoft.SqlServer.Dts.Tasks.ExpressionTask
Assembly:  Microsoft.SqlServer.ExpressionTask (in Microsoft.SqlServer.ExpressionTask.dll)

Sintassi

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

Nel tipo ExpressionTask sono esposti i membri seguenti.

Costruttori

  Nome Descrizione
Metodo pubblico ExpressionTask Initializes a new instance of the ExpressionTask class.

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Proprietà

  Nome Descrizione
Proprietà pubblica DebugMode Gets or sets a Boolean that indicates whether a task should determine whether breakpoints are enabled.
Proprietà pubblica ExecutionValue Returns the result of the task execution. Esegue l'override di Task.ExecutionValue.
Proprietà pubblica Expression Gets or sets the expression to be executed by the task.
Proprietà pubblica 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.
Proprietà pubblica Version *** Member deprecated; see Remarks. ***    Returns the version of the task. This property is read-only. Ereditato da Task.

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Metodi

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

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Protezione dei thread

I membri static (Shared in Visual Basic) pubblici di questo tipo sono affidabili. Non è invece garantita la sicurezza dei membri dell'istanza.

Vedere anche

Riferimento

Spazio dei nomi Microsoft.SqlServer.Dts.Tasks.ExpressionTask