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Why can't I control the selection of items in the drop down list using the arrow keys?

开发者 https://www.devze.com 2023-03-27 10:44 出处：网络

I try to use down and up arrow to select it开发者_如何学Pythonem in DropDownList but it doesn\'t work.

相关专题：actionscript-3 air apache-flex

I try to use down and up arrow to select it开发者_如何学Pythonem in DropDownList but it doesn't work. Do you know why?

Thanks for your help

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