技术上这个步骤不必最先进行，不过需要在早期完成；应该在编写任何应用程序代码(甚至是自动生成的代码)之前创建数据库，这应该是显然的。

Technically, this step need not occur first, but it needs to occur early; it should be obvious that you should create the database before any application code, even automatically generated code.

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应用程序的代码框架是自动生成的。

The code framework of the app was generated automatically.

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您可将数据源拖放到应用程序中的一个窗体中，这将自动在窗体中创建默认用户界面控件并生成所有必需的代码。

You can drag and drop the data source onto a form in the application, which automatically creates a default user interface control in the form and generates all the necessary code.

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