IDTSOutputColumn90.SetDataTypeProperties Method

Sets multiple data type properties of an IDTSOutputColumn90 object simultaneously.

命名空间: Microsoft.SqlServer.Dts.Pipeline.Wrapper
程序集: Microsoft.SqlServer.DTSPipelineWrap (in microsoft.sqlserver.dtspipelinewrap.dll)

语法

声明
<DispIdAttribute(114)> _
Sub SetDataTypeProperties ( _
    <InAttribute> eDataType As DataType, _
    <InAttribute> lLength As Integer, _
    <InAttribute> lPrecision As Integer, _
    <InAttribute> lScale As Integer, _
    <InAttribute> lCodePage As Integer _
)

[DispIdAttribute(114)] 
void SetDataTypeProperties (
    [InAttribute] DataType eDataType,
    [InAttribute] int lLength,
    [InAttribute] int lPrecision,
    [InAttribute] int lScale,
    [InAttribute] int lCodePage
)

[DispIdAttribute(114)] 
void SetDataTypeProperties (
    [InAttribute] DataType eDataType, 
    [InAttribute] int lLength, 
    [InAttribute] int lPrecision, 
    [InAttribute] int lScale, 
    [InAttribute] int lCodePage
)

/** @attribute DispIdAttribute(114) */ 
void SetDataTypeProperties (
    /** @attribute InAttribute() */ DataType eDataType, 
    /** @attribute InAttribute() */ int lLength, 
    /** @attribute InAttribute() */ int lPrecision, 
    /** @attribute InAttribute() */ int lScale, 
    /** @attribute InAttribute() */ int lCodePage
)

DispIdAttribute(114) 
function SetDataTypeProperties (
    eDataType : DataType, 
    lLength : int, 
    lPrecision : int, 
    lScale : int, 
    lCodePage : int
)

参数

• eDataType
  The DataType of the column.

• lLength
  The length of the column.

• lPrecision
  The total number of digits of the output column.

• lScale
  The number of decimal places of the output column.

• lCodePage
  The character set of the output column.

备注

已更新的示例代码：2006 年 7 月 17 日

The parameters of this method are individual read-only properties of the IDTSOutputColumn90 object whose values are set by using this method. The method is required because the values of these properties are dependent on each other. This method provides a mechanism for updating these properties atomically, allowing the data flow to enforce the dependencies. The eDataType parameter is used to determine the other checks to perform on the parameter values.

The following table shows the dependencies that are enforced when setting the data type properties of an output column.

DataType	Length	Scale	Precision	CodePage
DT_DECIMAL	0	Greater than 0 and less than or equal to 28.	0	0
DT_CY	0	0	0	0
DT_NUMERIC	0	Greater than 0 and less than or equal to 28 and less than Precision.	Greater than or equal to 1 and less than or equal to 38.	0
DT_BYTES	Greater than 0.	0	0	0
DT_STR	Greater than 0 and less than 8000.	0	0	Not 0, and a valid code page.
DT_WSTR	Greater than 0 and less than 4000.	0	0	0

For more information about Integration Services data types and their properties, see Integration Services 数据类型.

For a brief overview of the codepages supported by the SQL Server 2005 数据库引擎, and a partial list of codepage values, see 排序规则和代码页体系结构.

The use of the SetDataTypeProperties method is discussed or demonstrated briefly in Developing a Custom Source Component, Developing a Custom Transformation Component with Synchronous Outputs, and Developing a Custom Transformation Component with Asynchronous Outputs.

线程安全

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

平台

开发平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

请参阅

参考

IDTSOutputColumn90 Interface
IDTSOutputColumn90 Members
Microsoft.SqlServer.Dts.Pipeline.Wrapper Namespace