PipelineBuffer.GetColumnInfo 方法
Retrieves the BufferColumn structure for a PipelineBuffer column.
此 API 不符合 CLS 標準。
命名空間： Microsoft.SqlServer.Dts.Pipeline
組件： Microsoft.SqlServer.PipelineHost (在 Microsoft.SqlServer.PipelineHost.dll 中)
語法
'宣告
<CLSCompliantAttribute(False)> _
Public Function GetColumnInfo ( _
columnIndex As Integer _
) As BufferColumn
'用途
Dim instance As PipelineBuffer
Dim columnIndex As Integer
Dim returnValue As BufferColumn
returnValue = instance.GetColumnInfo(columnIndex)
[CLSCompliantAttribute(false)]
public BufferColumn GetColumnInfo(
int columnIndex
)
[CLSCompliantAttribute(false)]
public:
BufferColumn GetColumnInfo(
int columnIndex
)
[<CLSCompliantAttribute(false)>]
member GetColumnInfo :
columnIndex:int -> BufferColumn
public function GetColumnInfo(
columnIndex : int
) : BufferColumn
參數
- columnIndex
型別：System.Int32
The index of the column whose BufferColumn structure is retrieved.
傳回值
型別：Microsoft.SqlServer.Dts.Pipeline.BufferColumn
The BufferColumn structure of the specified PipelineBuffer column.
備註
The BufferColumn contains information about the data stored in a PipelineBuffer column. This information can be used to prevent exceptions that might occur when assigning data to the buffer column. For example, columns with a fixed length such as the DT_STR, DT_TEXT, DT_WSTR, and DT_BYTES data types will fail if the data length is greater than the MaxLength of the BufferColumn.