通过

Expression.Calculate Method

Evaluates the Multidimensional Expressions (MDX) expression under a specified tuple and returns the scalar result.

命名空间: Microsoft.AnalysisServices.AdomdServer
程序集: msmgdsrv (in msmgdsrv.dll)

语法

声明
Public Function Calculate ( _
    tuple As Tuple _
) As MDXValue

public MDXValue Calculate (
    Tuple tuple
)

public:
MDXValue^ Calculate (
    Tuple^ tuple
)

public MDXValue Calculate (
    Tuple tuple
)

public function Calculate (
    tuple : Tuple
) : MDXValue

参数

  • tuple
    The tuple under which to evaluate the MDX expression.

返回值

An MDXValue that contains the scalar result of the MDX expression.

备注

The type of the MDXValue is a scalar value, such as an integer, a double, or a string. The MDXValue that is returned can be cast using one of the To methods, such as ToInt32, ToDouble, or ToString. The MDXValue can also be cast by language-specific casting.

To retrieve a non-scalar value, such as a Set, Tuple, or Member, after evaluating an MDX expression, use the CalculateMdxObject method.

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

Expression Class
Expression Members
Microsoft.AnalysisServices.AdomdServer Namespace