private void cb_sensors_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var appvm = AppVM.GetCurrent();
SensorVM sensor = e.AddedItems[0] as SensorVM; // we assume comboBox so theres always a single selected item
BoneVM bone = (BoneVM)DataContext;
var arg = new Tuple <BoneVM, SensorVM>(bone, sensor);
if (appvm.AssignSensorToBoneCommand.CanExecute(arg))
{
appvm.AssignSensorToBoneCommand.Execute(arg);
}
;
}