FieldName Element for EventClass/Schema/Field (ADF)

Specifies the user-defined name of an event field.

語法

<EventClasses>
    <EventClass>
        ...
        <Schema>
            <Field>
                <FieldName>

Element Characteristics

Characteristic	Description
Data type	string, between 1 and 128 characters in length.
Default value	None.
Occurrence	Required once per Field element.
Updates	Can be modified, but not added or deleted, when you update the application.

Element Relationships

Relationship	Elements
Parent element	Field Element for EventClass/Schema (ADF)
Child elements	None.

備註

Field names can contain letters, numbers, and the special characters _, #, @, and $. They must conform to SQL Server identifier conventions. For more information about SQL Server identifiers, see 識別碼.

重要事項：
You cannot name an event field EventBatchID or EventID. Notification Services already uses these field names internally.

重要事項：
If you update a FieldName element, updating the application deletes and re-creates the event class to which it corresponds. This includes dropping and re-creating the SQL Server tables and indexes used by this event class. Any data existing in the original event class tables is permanently deleted.

範例

The following example shows how to specify that the field name is StockSymbol.

<FieldName>StockSymbol</FieldName>

請參閱

參考

Application Definition File Reference

其他資源

定義核心事件類別屬性
更新執行個體及應用程式

說明及資訊

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