wpf 4.0 - In WPF, how to check/uncheck a checkbox on 1/0 or y/n entered by user -

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i have checkbox in user control. want user able check checkbox when enters y or 1, , uncheck when n or 0 entered.

better have in xaml if possible.

thank in advance, appreciated.

you can add keybinding usercontrol respond key presses in xaml, still need write command changes binding property. 

<usercontrol.inputbindings>     <keybinding key="y" command="{binding mycommand}" />     <keybinding key="n" command="{binding mycommand}" />     <keybinding key="d0" command="{binding mycommand}" />     <keybinding key="d1" command="{binding mycommand}" /> </usercontrol.inputbindings>

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