Dbml file can still be customized with the normal Visual Studio 2008 designer.

Dbml文件依然能通过普通的Visual Studio 2008设计器来自定义。

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When your database changes, you will need to update your DBML file to reflect those changes.

更改数据库时，您需要更新 DBML 文件以反映这些更改。

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One way to do this is to automatically create a new DBML file and then re-do your type mapping customizations.

完成此任务的一种方式是自动新建一个 DBML 文件，然后重新执行类型映射自定义。

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