custom field

基本解释

Next, we show some codes manipulating custom fields in an example book store application.
接下来，我们通过一个样例书店应用程序演示如何操作定制字段。
In addition to the predefined fields, you can add extra custom fields to the extension mappings by defining custom attributes on the mappings.
除了预定义的字段外，通过对映射定义定制属性，您还可以向扩展映射添加额外的定制字段。
We then show how to create custom fields by creating property sheet types and document types, how to create a document with custom fields, and how to update the values in the custom fields.
然后我们演示如何通过创建属性表类型和文档类型来创建定制字段，如何创建带定制字段的文档，以及如何更新定制字段中的值。

But probably few of them entertained thoughts about how this custom might relate to other fields of endeavor.
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