BooleanLeafCondition Class

项目
12/15/2008

Evaluates to true if the Boolean-valued Argument has a value of true; otherwise, it evaluates to false. 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 BooleanLeafCondition
    Inherits LeafCondition

public class BooleanLeafCondition : LeafCondition

public ref class BooleanLeafCondition : public LeafCondition

public class BooleanLeafCondition extends LeafCondition

public class BooleanLeafCondition extends LeafCondition

备注

You must set the Argument property using the BooleanLeafCondition constructor or the property.

Inheritance Hierarchy

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

示例

Instead of checking a field or using a function, the condition in this example simply sets the Boolean value to true, resulting in notifications for all events. This could be used in an enterprise monitoring subscription or a subscription used to verify that the Notification Services application is generating notifications as expected:

// Create subscription and define basic properties.
s = new Subscription(nsApplication, subscriptionClassName);
s.SubscriberId = "David";
s.Enabled = true;
s.RuleName = "InventoryTrackerRule";
s.SetFieldValue("DeviceName", "myDevice");
s.SetFieldValue("SubscriberLocale", "en-us");

// Define a condition that is true for all events.
s.Condition = new BooleanLeafCondition(true);

// Add subscription.
s.Add();

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