GetColumnCount 方法
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（在 Microsoft.SqlServer.DTSPipelineWrap.dll 中）
语法
声明
Public Overridable Function GetColumnCount ( _
hBufferType As Integer _
) As UInteger
用法
Dim instance As DTSBufferManagerClass
Dim hBufferType As Integer
Dim returnValue As UInteger
returnValue = instance.GetColumnCount(hBufferType)
public virtual uint GetColumnCount(
int hBufferType
)
public:
virtual unsigned int GetColumnCount(
[InAttribute] int hBufferType
)
abstract GetColumnCount :
hBufferType:int -> uint32
override GetColumnCount :
hBufferType:int -> uint32
public function GetColumnCount(
hBufferType : int
) : uint
参数
- hBufferType
类型：System. . :: . .Int32
The ID of the registered buffer.
返回值
类型：System. . :: . .UInt32
An Integer that specifies the number of columns defined for the registered IDTSBuffer100 object.
实现
注释
The GetColumnCount method returns the number of columns defined for the IDTSBuffer100 object identified by the hBufferType parameter. If the buffer definition specified by hBufferType does not exist, an E_INVALIDARG error occurs.