You can add controls at run time, but only before the Ribbon is loaded.

可以在运行时添加控件，但只能在加载功能区之前添加。

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Otherwise, you can add controls to an existing form.

否则，您可将控制项加入至现有表单。

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Otherwise, you can add controls to an existing form.

否则，您可将控制项加入至现有表单。

youdao