IDTSRuntimeComponent100.PreExecute 方法

定义

public:
 void PreExecute();
[System.Runtime.InteropServices.DispId(13)]
public void PreExecute ();
[<System.Runtime.InteropServices.DispId(13)>]
abstract member PreExecute : unit -> unit
Public Sub PreExecute ()
属性

注解

组件开发人员应尽可能将尽可能多的功能纳入 PreExecute,因为每个组件执行只调用一次,这与每个输入缓冲区调用一次不同 ProcessInput。 Components should locate the indexes of their input and output columns in the IDTSBuffer100 by calling the FindColumnByLineageID method of the BufferManager.

适用于