usercontrol with RadioButton Behavior

[Shinra]

hi, everyone
this is something like an expander control, it uses radiobutton as a header. the expander control also behave like a radiobutton, so if there are more than 1 expander in a container, it will affect each other expanded state.

it's not yet complete. it can't be selected using keyboard as radiobutton would. and haven't the items container so it would accept any object as items (i add radiobutton inside for testing as i intended to use it as a menu). i also wish for it have databinding (so it can load a table/query as items).

any suggestion & tips will be gladly accepted, thank you

[Hack]

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