Dynamically set the value of ui-sref Angularjs

Question

I have searched for a similar question but the ones that came up seem slightly different. I am trying to change the ui-sref='' of a link dynamically (this link points to the next section of a wizard form and the next section depends on the selection made on the dropdown list). I am simply trying to set the ui-sref attribute depending on some selection in a select box. I am able to change the ui-sref by binding to a scope attribute which is set when a selection is made. however the link does not work, is this possible at all? thanks

  <a ui-sref="form.{{url}}" >Next Section</a>

and then in my controller, I set the url parameter this way

switch (option) {
  case 'A': {
    $scope.url = 'sectionA';
  } break;
  case 'B': {
    $scope.url = 'sectionB';
  } break;
}

Alternatively, I used directives to get it to work by generating the hyperlink with the desired ui-sref attribute according to the option selected on the select box (drop down).

Hhowever this means I have to re-create the link each time a different option is selected from the selectbox which causes an undesirable flickering effect. My question is this, is it possible to change the value of the ui-sref as I tried doing above by simpling changing the value of url in my controller or do I have to re-create the entire element using a directive each time a selection is made as I have done below? (just showing this for completeness)

Select option directive (this directive generates the link directive)

define(['app/js/modules/app', 'app/js/directives/hyperLink'], function (app) {
app.directive('selectUsage', function ($compile) {

    function createLink(scope,element) {
        var newElm = angular.element('<hyper-link></hyper-link>');
        var el = $(element).find('.navLink');
        $(el).html(newElm);
        $compile(newElm)(scope);
    }

    return {

        restrict: 'E',
        templateUrl: '/Client/app/templates/directives/select.html'

        ,link: function (scope, element, attrs) {

            createLink(scope, element);

            element.on('change', function () {
                createLink(scope,element);
            })
        }
    }
})

Hyperlink directive

define(['app/js/modules/app'], function (app) {
app.directive('hyperLink', function () {

    return {
        restrict: 'E',
        templateUrl: '/Client/app/templates/directives/hyperLink.html',
        link: function (scope, element, attrs) { }
    }

})

Hyperlink template

<div>
    <button ui-sref="form.{url}}">Next Section</button>
</div>

Answer 1

Looks like this is possible to do after all.

A breadcrumb on GitHub by one of the ui-router authors led me to try the following:

<a ng-href="{{getLinkUrl()}}">Dynamic Link</a>

Then, in your controller:

$scope.getLinkUrl = function(){
  return $state.href('state-name', {someParam: $scope.someValue});
};

Turns out, this works like a charm w/ changing scoped values and all. You can even make the 'state-name' string constant reference a scoped value and that will update the href in the view as well :-)