通过

ScriptBuffer.Item Property

  • 项目

Gets or sets the value of a column in the buffer by using its index in the array of buffer column indexes.

命名空间: Microsoft.SqlServer.Dts.Pipeline
程序集: Microsoft.SqlServer.TxScript (in microsoft.sqlserver.txscript.dll)

语法

声明
Protected Default Property Item ( _
    ColumnIndex As Integer _
) As Object

protected Object this [
    int ColumnIndex
] { get; set; }

protected:
property Object^ default [int] {
    Object^ get (int ColumnIndex);
    void set (int ColumnIndex, Object^ value);
}

/** @property */
protected Object get_Item (int ColumnIndex)

/** @property */
protected void set_Item (int ColumnIndex, Object value)

参数

  • ColumnIndex
    The index of the column.

属性值

The value of a column in the buffer by using its index in the array of buffer column indexes.

备注

The Script component developer does not use the ScriptBuffer class directly, but indirectly, through the derived classes in the BufferWrapper project item that represent the component's input and outputs.

The developer does not have to use the Item property, because the derived classes provide typed accessors for each buffer column, with property names that correspond to the column names.

示例

The following sample code from the autogenerated BufferWrapper project item demonstrates how the Script component implicitly uses the Item method to retrieve a column from the buffer.

    Public ReadOnly Property [City]() As String
        Get
            Return CType(Me(1), String)
        End Get
    End Property

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

ScriptBuffer Class
ScriptBuffer Members
Microsoft.SqlServer.Dts.Pipeline Namespace