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PipelineBuffer.DirectErrorRow Yöntemi (Int32, Int32, Int32)

Gönderen bir PipelineBuffer satır için bir IDTSOutput100 , IsErrorOut özellik doğru.

Ad Alanı:  Microsoft.SqlServer.Dts.Pipeline
Derleme:  Microsoft.SqlServer.PipelineHost (Microsoft.SqlServer.PipelineHost içinde.dll)

Sözdizimi

'Bildirim
Public Sub DirectErrorRow ( _
    outputID As Integer, _
    errorCode As Integer, _
    errorColumn As Integer _
)
'Kullanım
Dim instance As PipelineBuffer
Dim outputID As Integer
Dim errorCode As Integer
Dim errorColumn As Integer

instance.DirectErrorRow(outputID, errorCode, _
    errorColumn)

public void DirectErrorRow(
    int outputID,
    int errorCode,
    int errorColumn
)

public:
void DirectErrorRow(
    int outputID, 
    int errorCode, 
    int errorColumn
)

member DirectErrorRow : 
        outputID:int * 
        errorCode:int * 
        errorColumn:int -> unit 

public function DirectErrorRow(
    outputID : int, 
    errorCode : int, 
    errorColumn : int
)

Parametreler

  • errorCode
    Tür: System.Int32
    Satır işlenirken oluştu hata sayısı.

Açıklamalar

Bu yöntem olan veri akışı bileşenleri tarafından kullanılan IDTSOutput100 ile nesneleri IsErrorOut özelliği küme için doğru.Arabellek satır işlenirken hata karşılaştığında ve zamanı bileşeni tarafından verilir RD_RedirectRow Belirtilen giriş, çıkış, veya sütun.

Örnekler

Aşağıdaki kod örneği kullanarak zaman uyumlu hata çıktı arabelleğindeki satır doğrudan gösterilmiştir DirectErrorRow yöntem.

public override void ProcessInput(int inputID, PipelineBuffer buffer)
{
        IDTSInput100 input = ComponentMetaData.InputCollection.GetObjectByID(inputID);

        /// This code sample assumes the component has 2 outputs, one the default,
        /// the other the error output. If the errorOutputIndex returned from GetErrorOutputInfo
        /// is 0, then the default output is the second output in the collection.
        int defaultOutputID = -1;
        int errorOutputID = -1;
        int errorOutputIndex = -1;

        GetErrorOutputInfo(ref errorOutputID,ref errorOutputIndex);

        if (errorOutputIndex == 0)
            defaultOutputID = ComponentMetaData.OutputCollection[1].ID;
        else
            defaultOutputID = ComponentMetaData.OutputCollection[0].ID;

        while (buffer.NextRow())
        {
            try
            {
                /// TODO: Implement code to process the columns in the buffer row.

                /// Ideally, your code should detect potential exceptions prior to them occurring, rather
                /// than having a generic try/catch block such as this. 
                /// However, since the error or truncation implementation is specific to each component
                /// this sample focuses on actually directing the row, and not a single error or truncation.

                /// Unless an exception occurs, direct the row to the default 
                buffer.DirectRow(defaultOutputID);
            }
            catch
            {
                /// Yes. Has the user specified to redirect the row?
                if (input.ErrorRowDisposition == DTSRowDisposition.RD_RedirectRow)
                {
                    /// Yes, direct the row to the error output.
                    /// TODO: Add code to include the errorColumnID
                    buffer.DirectErrorRow(errorOutputID, 0, errorColumnID);
                }
                else if (input.ErrorRowDisposition == DTSRowDisposition.RD_FailComponent || input.ErrorRowDisposition == DTSRowDisposition.RD_NotUsed)
                {
                    /// No, the user specified to fail the component, or the error row disposition was not set.
                    throw new Exception("An error occurred, and the DTSRowDisposition is either not set, or is set to fail component.");
                }
                else
                {
                    /// No, the user specified to ignore the failure so 
                    /// direct the row to the default output.
                    buffer.DirectRow(defaultOutputID);
                }

            }
        }
}

Public  Overrides Sub ProcessInput(ByVal inputID As Integer, ByVal buffer As PipelineBuffer) 
   Dim input As IDTSInput100 = ComponentMetaData.InputCollection.GetObjectByID(inputID) 
   Dim defaultOutputID As Integer = -1 
   Dim errorOutputID As Integer = -1 
   Dim errorOutputIndex As Integer = -1 
   GetErrorOutputInfo(errorOutputID, errorOutputIndex) 
   If errorOutputIndex = 0 Then 
     defaultOutputID = ComponentMetaData.OutputCollection(1).ID 
   Else 
     defaultOutputID = ComponentMetaData.OutputCollection(0).ID 
   End If 
   While buffer.NextRow 
     Try 
       buffer.DirectRow(defaultOutputID) 
     Catch 
       If input.ErrorRowDisposition = DTSRowDisposition.RD_RedirectRow Then 
         buffer.DirectErrorRow(errorOutputID, 0, errorColumnID) 
       Else 
         If input.ErrorRowDisposition = DTSRowDisposition.RD_FailComponent OrElse input.ErrorRowDisposition = DTSRowDisposition.RD_NotUsed Then 
           Throw New Exception("An error occurred, and the DTSRowDisposition is either not set, or is set to fail component.") 
         Else 
           buffer.DirectRow(defaultOutputID) 
         End If 
       End If 
     End Try 
   End While 
End Sub