IDTSRuntimeComponent90.PreExecute Method

Called after PrepareForExecute, and before PrimeOutput and ProcessInput. The developer can supply code that executes once before the component performs its main processing.

Espace de noms: Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly: Microsoft.SqlServer.DTSPipelineWrap (in microsoft.sqlserver.dtspipelinewrap.dll)

Syntaxe

'Déclaration
<DispIdAttribute(13)> _
Sub PreExecute

[DispIdAttribute(13)] 
void PreExecute ()

[DispIdAttribute(13)] 
void PreExecute ()

/** @attribute DispIdAttribute(13) */ 
void PreExecute ()

DispIdAttribute(13) 
function PreExecute ()

Notes

Component developers should factor as much functionality into PreExecute as possible because it is called only once per component execution, unlike ProcessInput, which is called once for each input buffer. Components should locate the indexes of their input and output columns in the IDTSBuffer90 by calling the FindColumnByLineageID method of the BufferManager.

Sécurité des threads

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Plateformes

Plateformes de développement

Pour obtenir la liste des plateformes prises en charge, consultez Configuration matérielle et logicielle requise pour l'installation de SQL Server 2005.

Plateformes cibles

Pour obtenir la liste des plateformes prises en charge, consultez Configuration matérielle et logicielle requise pour l'installation de SQL Server 2005.

Voir aussi

Référence

IDTSRuntimeComponent90 Interface
IDTSRuntimeComponent90 Members
Microsoft.SqlServer.Dts.Pipeline.Wrapper Namespace