The code-behind file is opened and the cursor is positioned in the selected event handler.

随即将打开代码隐藏文件，并将光标定位在选定的事件处理程序中。

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You can define a control in the code-behind file as long as you make it protected or public.

可以在代码隐藏文件中定义控件，但要使其成为受保护或公共控件。

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Then specify the value of that attribute as the name of the event handler method that you defined in the code-behind file of the XAML page.

接著将该属性的值指定为您在 XAML 页面的程式码后置档案中所定义的事件处理常式方法的名称。

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