GetString 方法

Gets the string stored in the buffer column.

命名空間：  Microsoft.SqlServer.Dts.Pipeline
組件：  Microsoft.SqlServer.PipelineHost (在 Microsoft.SqlServer.PipelineHost.dll 中)

語法

'宣告
Public Function GetString ( _
    columnIndex As Integer _
) As String
'用途
Dim instance As PipelineBuffer
Dim columnIndex As Integer
Dim returnValue As String

returnValue = instance.GetString(columnIndex)

public string GetString(
    int columnIndex
)

public:
String^ GetString(
    int columnIndex
)

member GetString : 
        columnIndex:int -> string 

public function GetString(
    columnIndex : int
) : String

參數

• columnIndex
  型別：System. . :: . .Int32
  The index of the column in the buffer row.

傳回值

型別：System. . :: . .String
The string stored in the buffer column.

備註

This method works with the following Integration Services data types:

• DT_STR

• DT_WSTR

If the value being assigned to the buffer column is not a string or the buffer column DataType is not a DT_STR, DT_WSTR, DT_TEXT, or DT_NTEXT, an UnsupportedBufferDataTypeException occurs.

If the value of the column is null, the PipelineBuffer produces a ColumnIsNullException. You can check for null by calling the IsNull method.

For a complete list of Integration Services data types and the corresponding Get and Set methods of the PipelineBuffer class to use with each type, see 使用資料流程中的資料類型.

請參閱

參考

PipelineBuffer 類別

Microsoft.SqlServer.Dts.Pipeline 命名空間