You can use the built-in composite application navigator to switch pages, and an aggregation component can maintain context across page transitions.

您可以使用内置的复合应用程序导航器切换页面，使用聚合组件在进行页面转换时保持上下文。

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This could be the built-in composite application navigator that appears as a column to the left of the screen, or it could be a custom control that presents a list of buttons with drop-down options.

这可以是屏幕左边显示为列的内置复合应用程序导航器，也可以是呈现按钮列表及其下拉选项的定制控件。

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For a consistent user interface, though, you must add this navigator to each page in your composite application.

但是，为了用户界面的一致性，必须将导航器添加到复合应用程序中的每个页面。

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