FieldName Element for EventClass/Schema/Field (ADF)

Specifies the user-defined name of an event field.

语法

<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.

备注

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 标识符.

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

重要提示：
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.

示例

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

<FieldName>StockSymbol</FieldName>

请参阅

参考

Application Definition File Reference

其他资源

定义核心事件类属性
更新实例和应用程序

帮助和信息

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