That is the effect of a custom designer for the ContextMenu control.

这是通过快捷菜单控件的自定义设计器来实现的。

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Should a custom subclass be desired, it is straightforward to use and delegate the logic to create the graphic effect to an instance of RolloverIcon.

假设想得到定制的子类，那么使用创建图形效果的逻辑并将这个逻辑委托给RolloverIcon的实例是个很简单的做法。

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When there is an error due to policy violations based on the current white list in effect, the proxy sends a custom JSON error object back to the browser. See listing 1.

根据当前生效的白名单，因策略违规而导致错误时，代理会向浏览器发送一个自定义的JSON错误对象，如清单1所示。

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