IsNullLeafCondition Class

项目
12/15/2008

Evaluates to true if its Argument is NULL. This class cannot be inherited.

命名空间: Microsoft.SqlServer.NotificationServices.Rules
程序集: Microsoft.SqlServer.NotificationServices.Rules (in microsoft.sqlserver.notificationservices.rules.dll)

语法

声明
Public Class IsNullLeafCondition
    Inherits LeafCondition

public class IsNullLeafCondition : LeafCondition

public ref class IsNullLeafCondition : public LeafCondition

public class IsNullLeafCondition extends LeafCondition

public class IsNullLeafCondition extends LeafCondition

备注

You must set the Argument property using the property or the IsNullLeafCondition(Argument) constructor.

Inheritance Hierarchy

System.Object
   Microsoft.SqlServer.NotificationServices.Rules.RuleObject
     Microsoft.SqlServer.NotificationServices.Rules.Condition
       Microsoft.SqlServer.NotificationServices.Rules.LeafCondition
        Microsoft.SqlServer.NotificationServices.Rules.IsNullLeafCondition

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