FunctionValue Class
Represents an Argument object that obtains its value from a Transact-SQL user-defined function.
Espacio de nombres: Microsoft.SqlServer.NotificationServices.Rules
Ensamblado: Microsoft.SqlServer.NotificationServices.Rules (in microsoft.sqlserver.notificationservices.rules.dll)
Sintaxis
'Declaración
Public Class FunctionValue
Inherits Argument
public class FunctionValue : Argument
public ref class FunctionValue : public Argument
public class FunctionValue extends Argument
public class FunctionValue extends Argument
Notas
Use the FunctionValue class to use custom database logic to determine an argument value. Your user-defined function must have a scalar return type.
You must specify the user-defined function and parameters in the FunctionValue constructor or using the Parameters and Name properties.
Inheritance Hierarchy
System.Object
Microsoft.SqlServer.NotificationServices.Rules.RuleObject
Microsoft.SqlServer.NotificationServices.Rules.Argument
Microsoft.SqlServer.NotificationServices.Rules.FunctionValue
Ejemplo
The following example shows the definition of a user-defined function, and then uses this function to evaluate events:
// Subscription based on the following function definition:
/*
create function SoundexMatch(@x nvarchar(max), @y nvarchar(max))
returns bit
as
begin
if soundex(@x) = soundex(@y)
return 1
return 0
end
* */
// Create subscription and define basic properties.
s = new Subscription(nsApplication, subscriptionClassName);
s.SubscriberId = "Richard";
s.Enabled = true;
s.RuleName = "InventoryTrackerRule";
s.SetFieldValue("DeviceName", "myDevice");
s.SetFieldValue("SubscriberLocale", "en-us");
// Define a condition that uses the function to evaluate
// if the condition is true.
s.Condition = new BooleanLeafCondition(new FunctionValue(
db.UserDefinedFunctions["SoundexMatch", "dbo"],
new FieldValue("ProductName"),
"Rood-250 Black, 48"));
// Add subscription.
s.Add();
Seguridad para subprocesos
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.
Plataformas
Plataformas de desarrollo
Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.
Plataformas de destino
Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.
Vea también
Referencia
FunctionValue Members
Microsoft.SqlServer.NotificationServices.Rules Namespace