Classe ScriptComponent

Gerarchia di ereditarietà

System. . :: . .Object
  Microsoft.SqlServer.Dts.Pipeline..::..ScriptComponent

Sintassi

'Dichiarazione
Public Class ScriptComponent
'Utilizzo
Dim instance As ScriptComponent

public class ScriptComponent

public ref class ScriptComponent

type ScriptComponent =  class end

public class ScriptComponent

Costruttori

	Nome	Descrizione
	ScriptComponent	Initializes a new instance of the ScriptComponent class.

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Proprietà

	Nome	Descrizione
	ComponentMetaData	Returns a reference to the component definition.
	ReadOnlyVariables	Returns the collection of ReadOnlyVariables available to the component.
	ReadWriteVariables	Returns the collection of ReadWriteVariables available to the component.
	VariableDispenser	Returns an object that the data flow uses internally to work with variables.

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Metodi

	Nome	Descrizione
	AcquireConnections	Obtains a connection or connection information by using a connection manager.
	Equals	Ereditato da Object.
	Finalize	Ereditato da Object.
	GetColumnIndexes	Infrastruttura.
	GetHashCode	Ereditato da Object.
	GetType	Ereditato da Object.
	Log	Writes a log entry.
	MemberwiseClone	Ereditato da Object.
	PostExecute	Executes custom code that must run after the Script component has processed its inputs and outputs.
	PreExecute	Executes custom code that must run before the Script component has processed its inputs and outputs.
	PrimeOutput	Prepares the outputs in Script components, such as sources and transformations with asynchronous outputs, that add new rows to the output buffers.
	ProcessInput	Processes the inputs in Script components, such as transformations and destinations, that receive inputs from upstream components.
	ReleaseConnections	Releases a connection to a connection manager.
	SetBufferColumnIndexes	Infrastruttura.
	ToString	Ereditato da Object.

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Osservazioni

The ScriptComponent class serves as the base class for the read-only UserComponent class, which is generated by the Script component in the ComponentWrapper project item in a Script component project. The UserComponent class serves as the base class for the ScriptMain class, in which the developer writes custom code, and provides the developer with a set of methods for working with the component's inputs and outputs. It also provides strongly-typed accessor properties for variables and connection managers available to the component.

The Script component developer does not use the ScriptComponent class directly, but indirectly, by coding the methods and properties of the ScriptMain class, which inherits from ScriptComponent through the UserComponent class.

For more information, see Codifica e debug del componente script and Informazioni sul modello a oggetti del componente script.

Esempi

The following code sample demonstrates all the code that a developer has to write to create a transformation with synchronous outputs by using the Script component. For more information on this sample, see Creazione di una trasformazione sincrona con il componente script.

Public Class ScriptMain
    Inherits UserComponent

    Public Overrides Sub MyAddressInput_ProcessInputRow(ByVal Row As MyAddressInputBuffer)

        Row.City = UCase(Row.City)

    End Sub

End Class

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