PipelineBuffer.DirectRow(Int32) 方法

public:
 void DirectRow(int outputID);

public void DirectRow(int outputID);

member this.DirectRow : int -> unit

Public Sub DirectRow (outputID As Integer)

参数

示例

以下示例展示了包含两个输出的组件，该组件属于同一排除组。 在 ProcessInput 过程中，行通过使用 DirectRow 方法发送到其中一个输出。

public override void ProvideComponentProperties()  
{  
    IDTSInput100 input = ComponentMetaData.InputCollection.New();  
    Input.Name = "DTSSampleInput";  

    IDTSOutput output = ComponentMetaData.OutputCollection.New();  
    output.ExclusionGroup = 1;  
    output.Name = "Output1";  
    output.SynchronousInputID = input.ID;  

    IDTSOutput output = ComponentMetaData.OutputCollection.New();  
    output.ExclusionGroup = 1;  
    output.Name = "Output2";  
    output.SynchronousInputID = input.ID;  
}  
public override void ProcessInput(int inputID, PipelineBuffer buffer)  
{  
    IDTSInput100 input = ComponentMetaData.InputCollection.GetObjectByID(inputID);  

    IDTSOutput100 output1 = ComponentMetaData.OutputCollection[0];  
    IDTSOutput100 output2 = ComponentMetaData.OutputCollection[1];  

    while( buffer.NextRow())  
    {  
        // TODO: Insert if/then block here.  
        // If criteria is met, direct the buffer row to output1.  
        buffer.DirectRow(output1.ID);  
        // Otherwise, direct the row to output2.  
         buffer.DirectRow(output2.ID);  
    }  
}  

Public Overrides Sub ProvideComponentProperties()   
 Dim input As IDTSInput100 = ComponentMetaData.InputCollection.New   
 Input.Name = "DTSSampleInput"   
 Dim output As IDTSOutput = ComponentMetaData.OutputCollection.New   
 output.ExclusionGroup = 1   
 output.Name = "Output1"   
 output.SynchronousInputID = input.ID   
 Dim output As IDTSOutput = ComponentMetaData.OutputCollection.New   
 output.ExclusionGroup = 1   
 output.Name = "Output2"   
 output.SynchronousInputID = input.ID   
End Sub   

Public  Overrides Sub ProcessInput(ByVal inputID As Integer, ByVal buffer As PipelineBuffer)   
 Dim input As IDTSInput100 = ComponentMetaData.InputCollection.GetObjectByID(inputID)   
 Dim output1 As IDTSOutput100 = ComponentMetaData.OutputCollection(0)   
 Dim output2 As IDTSOutput100 = ComponentMetaData.OutputCollection(1)   
While buffer.NextRow   
  ' TODO: Insert if/then block here.  
  ' If criteria is met, direct the buffer row to output1.  
   buffer.DirectRow(output1.ID)   
  ' Otherwise, direct the row to output2.  
   buffer.DirectRow(output2.ID)   
 End While   
End Sub  

注解

DirectRow该方法被包含多个输出的分量调用。ExclusionGroup 它用于将一 PipelineBuffer 行指向指定的输出——即组件中的特定输出。 该方法可用于错误输出和非错误输出，但 DirectErrorRow 应用于发送行到错误输出。

如果一个组件在同一排斥组中有两个同步输出，使用该方法将缓冲区推进到下一行 NextRow ，且未将该行指向特定输出，则该行会被发送到两个输出。