故事板运行得太早，或者从视图中重置单选按钮？

I am trying to set up a radio group that controls what command a single button will execute and would like for the radio group to revert to the default (first) option after any other option is executed. I know that I could do this in my view model, by binding the radio group values to a property and then using that property in the view model. But then I would have a single command that checks that property dispatching to the appropriate handler inside the view model, even though conceptually there really are multiple commands.I am trying to set up a radio group that contro