PipelineBuffer.GetDouble 方法
Gets the double stored in the PipelineBuffer column.
命名空间： Microsoft.SqlServer.Dts.Pipeline
程序集： Microsoft.SqlServer.PipelineHost（在 Microsoft.SqlServer.PipelineHost.dll 中）
语法
声明
Public Function GetDouble ( _
columnIndex As Integer _
) As Double
用法
Dim instance As PipelineBuffer
Dim columnIndex As Integer
Dim returnValue As Double
returnValue = instance.GetDouble(columnIndex)
public double GetDouble(
int columnIndex
)
public:
double GetDouble(
int columnIndex
)
member GetDouble :
columnIndex:int -> float
public function GetDouble(
columnIndex : int
) : double
参数
- columnIndex
类型：System.Int32
The index of the column in the PipelineBuffer row.
返回值
类型：System.Double
The double stored in the PipelineBuffer column.
注释
This method works with the DT_R8 data type in Integration Services.
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 在数据流中使用数据类型.