设计时环境提供了一个窗体设计器和一个属性编辑器，以使您可以操纵组件和生成用户界面。

The design-time environment provides a forms designer and a properties editor to allow you to manipulate components and build user interfaces.

youdao

在属性窗体的事件名称里双击事件名称就可以创建一个事件处理代码，这时代码后置文件会在代码编辑器中打开。

To create an event handler with the default name, you just double-click the event name in the Properties window. The event handler is created and the code-behind file is opened in the code editor.

youdao

可以打开多个代码编辑器，在不同的窗体或模块中查看代码，并在它们之间复制和粘贴代码。

You can open multiple code editors to view code in different forms or modules, and you can copy and paste among them.

youdao