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.