EventClass.EventFields Property

Gets the EventFieldCollection for the EventClass.

命名空間: Microsoft.SqlServer.Management.Nmo
組件: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

語法

'宣告
Public ReadOnly Property EventFields As EventFieldCollection

public EventFieldCollection EventFields { get; }

public:
property EventFieldCollection^ EventFields {
    EventFieldCollection^ get ();
}

/** @property */
public EventFieldCollection get_EventFields ()

public function get EventFields () : EventFieldCollection

屬性值

The EventFieldCollection object for the event class.

備註

You must define event fields for each event class.

The EventFieldCollection object collection contains the event fields that define the schema for the event class. You can add fields to the schema by using the collection's Add method.

範例

The following examples show how to add an event field to the end of the collection of event fields:

// Add an orgin field to the end of the field collection
EventField eventOrgin = 
    new EventField(flightEvents, "LeavingFrom");
eventOrgin.Type = "nvarchar(6)";
eventOrgin.TypeModifier = "not null";
flightEvents.EventFields.Add(eventOrgin);

' Add an orgin field to the end of the field collection.
Dim eventOrgin As EventField = _
    New EventField(flightEvents, "LeavingFrom")
eventOrgin.Type = "nvarchar(6)"
eventOrgin.TypeModifier = "not null"
flightEvents.EventFields.Add(eventOrgin)

The following examples show how to add an event field to an event class before a specific event field:

// Define a destination field and add it before the Price field
EventField eventDestination = 
    new EventField(flightEvents, "GoingTo");
eventDestination.Type = "nvarchar(6)";
flightEvents.EventFields.Add(eventDestination, "Price");

' Define a destination field and add it before the Price field.
Dim eventDestination As EventField = _
    New EventField(flightEvents, "GoingTo")
eventDestination.Type = "nvarchar(6)"
flightEvents.EventFields.Add(eventDestination, "Price")

The following examples show how to add an event field to an event class at a specific position:

// Define a price field and add it at position 1
EventField eventPrice = new EventField(flightEvents, "Price");
eventPrice.Type = "float";
flightEvents.EventFields.Add(eventPrice, 1);

' Define a price field and add it at position 1.
Dim eventPrice As EventField = _
    New EventField(flightEvents, "Price")
eventPrice.Type = "float"
flightEvents.EventFields.Add(eventPrice, 1)

執行緒安全性

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

開發平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

目標平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

請參閱

參考

EventClass Class
EventClass Members
Microsoft.SqlServer.Management.Nmo Namespace

其他資源

定義事件類別
Schema Element for EventClass (ADF)