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There are mobile internet settings and wi-fi settings in Windows Phone:

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In first case, we have a combobox containing 2 options. In second case we have a checkbox. Why? There is no third case in the mobile internet settings dialog(on/off only). So why might Microsoft have decided to use a combobox instead of a checkbox?

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closed as not constructive by Koen Lageveen, JohnGB, rk., ChrisF, Matt Obee May 27 '13 at 11:34

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There are other options that user can select on the cellular screen. They probably opted for consistency within the same screen over switching to on/off for fields that would have supported that. Having one option presented differently would have given it a special status that might not be appropriate.

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