title: AngularJS access parent scope from child controller
body: <p>I've set up my controllers using <code>data-ng-controller="xyzController as vm"</code></p>
  
  <p>I have a scenario with parent / child nested controllers. I have no problem accessing parent properties in the nested html by using <code>$parent.vm.property</code>, but I cannot figure out how to access the parent property from within my child controller.</p>
  
  <p>I've tried injecting $scope and then using <code>$scope.$parent.vm.property</code>, but this isn't working?</p>
  
  <p>Can anyone offer advice?</p>