您能告诉我一种禁用提交按钮的方法吗,该按钮通过以下方式变为新状态:
<a ui-sref="state">Submit</a>
仅当表单有效时,才应启用该按钮。
ng-disabled与ui-sref不起作用:
ng-disabled
ui-sref
<form name="tickets"> <button ng-disabled="!canSave()"><a ui-sref="view">Submit</a></button> </form>
app.js中的canSave函数为:
$scope.canSave = function(){ return $scope.tickets.$dirty && $scope.tickets.$valid; };
您可以简单地将其与之配对,ng-click这样便ng-disabled可以使用。
ng-click
.controller('myCtrl', function($scope, $state) { // so that you can call `$state.go()` from your ng-click $scope.go = $state.go.bind($state); }) <!-- call `go()` and pass the state you want to go to --> <button ng-disabled="!canSave()" ng-click="go('view')>Submit</button>
这是使用自定义指令的更理想的方式:
angular.module('myApp', ['ui.router']) .config(function($stateProvider) { $stateProvider.state('home', { url: '/' }); }) .controller('myCtrl', function() { }) .directive('uiSrefIf', function($compile) { return { scope: { val: '@uiSrefVal', if: '=uiSrefIf' }, link: function($scope, $element, $attrs) { $element.removeAttr('ui-sref-if'); $compile($element)($scope); $scope.$watch('if', function(bool) { if (bool) { $element.attr('ui-sref', $scope.val); } else { $element.removeAttr('ui-sref'); $element.removeAttr('href'); } $compile($element)($scope); }); } }; }) ; <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.2/angular.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.13/angular-ui-router.min.js"></script> <div ng-app="myApp" ng-controller="myCtrl"> <form name="form"> <input ng-model="foo" ng-required="true"> <button ng-disabled="form.$invalid"> <a ui-sref-if="!form.$invalid" ui-sref-val="home">test</a> </button> </form> </div>