Serves as the base class for the read-only classes representing the input and the outputs that are generated by the Script component in the BufferWrapper project item in a Script component project.
Assembly: Microsoft.SqlServer.TxScript (in Microsoft.SqlServer.TxScript.dll)
The class serves as the base class for the read-only classes representing the input and the outputs that are generated by the Script component in the BufferWrapper project item in a Script component project. The classes in the BufferWrapper project item provide the developer with a set of methods for working with the data flow buffers, as well as typed accessor properties for each column in the buffers.
The Script component developer does not use the class directly, but indirectly, through the derived classes in the BufferWrapper project item that represent the component's input and outputs.
The following code sample from Creating an Asynchronous Transformation with the Script Component demonstrates several methods and properties of the class, including AddRow, NextRow, EndOfRowset, and SetEndOfRowset.
Public Class ScriptMain Inherits UserComponent Private myRedmondAddressCount As Integer Public Overrides Sub CreateNewOutputRows() MySummaryOutputBuffer.AddRow() End Sub Public Overrides Sub MyAddressInput_ProcessInput(ByVal Buffer As MyAddressInputBuffer) While Buffer.NextRow() MyAddressInput_ProcessInputRow(Buffer) End While If Buffer.EndOfRowset Then MyAddressOutputBuffer.SetEndOfRowset() MySummaryOutputBuffer.MyRedmondCount = myRedmondAddressCount MySummaryOutputBuffer.SetEndOfRowset() End If End Sub Public Overrides Sub MyAddressInput_ProcessInputRow(ByVal Row As MyAddressInputBuffer) With MyAddressOutputBuffer .AddRow() .AddressID = Row.AddressID .City = Row.City End With If Row.City.ToUpper = "REDMOND" Then myRedmondAddressCount += 1 End If End Sub End Class