Gets the number of columns in the specified registered buffer type.
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(123)> _
Public Overridable Function GetColumnCount ( _
<InAttribute> hBufferType As Integer _
) As UInteger Implements IDTSBufferManager90.GetColumnCount
[DispIdAttribute(123)]
public virtual uint IDTSBufferManager90.GetColumnCount (
[InAttribute] int hBufferType
)
[DispIdAttribute(123)]
public:
virtual unsigned int GetColumnCount (
[InAttribute] int hBufferType
) = IDTSBufferManager90::GetColumnCount
J# 支持显式接口实现的使用，但不支持新接口实现的声明。
JScript 支持显式接口实现的使用，但不支持新接口实现的声明。
参数
- hBufferType
The ID of the registered buffer.
返回值
An Integer that specifies the number of columns defined for the registered IDTSBuffer90 object.
备注
The GetColumnCount method returns the number of columns defined for the IDTSBuffer90 object identified by the hBufferType parameter. If the buffer definition specified by hBufferType does not exist, an E_INVALIDARG error occurs.
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
DTSBufferManagerClass Class
DTSBufferManagerClass Members
Microsoft.SqlServer.Dts.Pipeline.Wrapper Namespace