PropertyStatement Class

Articolo
12/15/2008

Describes a logic statement in the form "IF <Condition> THEN <Result>," where the result is a scalar value. This class cannot be inherited.

Spazio dei nomi: Microsoft.SqlServer.NotificationServices.Rules
Assembly : Microsoft.SqlServer.NotificationServices.Rules (in microsoft.sqlserver.notificationservices.rules.dll)

Sintassi

'Dichiarazione
Public Class PropertyStatement
    Inherits LogicStatement

public class PropertyStatement : LogicStatement

public ref class PropertyStatement : public LogicStatement

public class PropertyStatement extends LogicStatement

public class PropertyStatement extends LogicStatement

Osservazioni

PropertyStatement objects are used by PropertyRule objects. If the condition for the property statement is met, the result defined by the Result property is returned.

You must specify values for the Result and Condition properties.

Inheritance Hierarchy

System.Object
   Microsoft.SqlServer.NotificationServices.Rules.RuleObject
     Microsoft.SqlServer.NotificationServices.Rules.LogicStatement
      Microsoft.SqlServer.NotificationServices.Rules.PropertyStatement

Esempio

The following example shows how to specify three properties: Few, Some, and Alot. Subscribers can use these properties when defining subscriptions.

// Define a new property that defines "Few," "Some," and "Alot"
// of inventory. 
PropertyRule quantityCategory = new PropertyRule(
    new ViewInputType(eventView),
    new PropertyStatement(new SimpleLeafCondition(
        new FieldValue("Quantity"),
        SimpleOperator.LessThan, 100), "Few"),
    new PropertyStatement(new BetweenLeafCondition(
        new FieldValue("Quantity"), 100, 200), "Some"),
    new PropertyStatement(new SimpleLeafCondition(
            new FieldValue("Quantity"),
            SimpleOperator.GreaterThan, 200),
        "Alot"));

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


// Use the new property to return only products with "few" remaining
// in inventory. Note that the category definition can be reused.
s.Condition = new SimpleLeafCondition(
    new RuleValue(quantityCategory),
    SimpleOperator.Equals,
    "Few");

// Add subscription.
s.Add();

Thread Safety

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.

Piattaforme

Piattaforme di sviluppo

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Piattaforme di destinazione