Event.Item Property (String)

Статья
12/15/2008

Gets or sets the value of an event data field in the event record, using the field name as an identifier.

Пространство имен: Microsoft.SqlServer.NotificationServices
Сборка: Microsoft.SqlServer.NotificationServices (in microsoft.sqlserver.notificationservices.dll)

Синтаксис

'Декларация
Public Default Property Item ( _
    fieldName As String _
) As Object

public Object this [
    string fieldName
] { get; set; }

public:
virtual property Object^ default [String^] {
    Object^ get (String^ fieldName) sealed;
    void set (String^ fieldName, Object^ value) sealed;
}

/** @property */
public final Object get_Item (String fieldName)

/** @property */
public final void set_Item (String fieldName, Object value)

Параметры

fieldName
The name of the event field.

Значение свойства

An Object that represents the field's value.

Пример

The following example shows how to set the value of an event data field using the name of the field:

string instanceName = "Tutorial";
string applicationName = "Weather";
string eventClassName = "WeatherEvents";
string eventProviderName = "WeatherSPs";

// Create an NSInstance object.
NSInstance testInstance = new NSInstance(instanceName);

// Create an NSApplication object.
NSApplication testApplication =
    new NSApplication(testInstance, applicationName);

// Create an EventCollector object.
EventCollector testEventCollector =
    new EventCollector(testApplication, eventProviderName);

// Create and define an Event object.
Event evt = new Event(testApplication, eventClassName);
evt["City"] = "Seattle";
evt["Date"] = DateTime.Now;
evt["Low"] = 40;
evt["High"] = 50;
evt["Forecast"] = "Cloudy";

// Write the event to the event collector's batch
testEventCollector.Write(evt);

// Commit the event batch to the application database.
testEventCollector.Commit();

Синхронизация потоков

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.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

Целевые платформы