GetString 方法

Gets the string stored in the buffer 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 GetString ( _
    columnIndex As Integer _
) As String
用法
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

参数

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

返回值

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

注释

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 在数据流中使用数据类型.

请参阅

参考

PipelineBuffer 类

Microsoft.SqlServer.Dts.Pipeline 命名空间