angularjs - Using $setValidity on an element outside of the current scope -

i have global directive, in charge of getting error message controller, compiling, , displaying it.

in case there server validation error such this email exists, focus on element, , set validity false, e.g. $setvalidity(false).

this directive not form, , doesn't contain form.

what suggest (already tried commented out)

directive('messagecompile', function ( $compile, $window, $rootscope ) {   return {     restrict: 'a',     scope: true,     link: function ( scope, element, attrs ) {       var el;        attrs.$observe( 'template', function ( tpl ) {         if ( angular.isdefined( tpl ) ) {           // compile provided template against current scope           el = $compile( tpl )( scope );           // stupid way of emptying element           element.html("");            // add template content           element.append( el );         }       });       attrs.$observe('focus', function(val){         if ( angular.isdefined( val )  && boolean(val)) {           var el = angular.element('[name="' + attrs.focus + '"]');           var form = el.parents().find('form');           var formname = form.attr('name');            el.focus();           // scope[formname].$setvalidity(val, false);                  // el.scope().$setvalidity(false);           // scope[formname][val].$setvalidity(false);           //$rootscope.scope[formname][val].$setvalidity(false);           //$rootscope.scope[formname].$setvalidity(val, false);         }       });         var windowel = angular.element($window);         windowel.on('scroll', function() {           if(window.scrolly > 46){             element.parent().parent().addclass('staytop');              // alert('here');           }             else{             // alert('here2');             element.parent().parent().removeclass('staytop');           }         });      },   } }). 

in order use $scope[formname] controller must on form element. either defining directly:

<form name="theform" ng-controller="thectrl"> 

or directive:

directive("mydirective", function() {     return {         template: "<form name='theform'>...</form>",         controller: ["$scope", function($scope) {             ...         }],         ...     }; }); 

if 1 these conditions met, have define name attribute every element need access:

<form name="theform" ...>     <input name="theinput" ...> 

then can access $setvalidity(), inside corresponding controller, defined above:

$scope.theform.theinput.$setvalidity(false); 

again remember: in order controller access form, must @ same element form, or maybe @ child scope.