使用 AngularJS 和表单验证禁用 jQuery 按钮 [英] Disable jQuery Button with AngularJS and Form Validation

问题描述

我想根据表单验证禁用我的 jQuery 按钮.根据文档，这对于使用以下语法的常规按钮相当容易:

 <button ng-click="save(user)" ng-disabled="form.$invalid">保存</button>

但是，当更改为 jQuery UI 按钮时，这不再起作用.我假设 Angular 在 jQuery UI 和 AngularJS 之间没有真正的绑定，因此需要一个指令来执行以下操作:

$("button" ).button( "option", "disabled" );

是这种情况还是有其他选择?我正在尝试做的 jsFiddle 在这里:http://jsfiddle.net/blakewell/vbMnN/.

我的代码如下所示:

查看

<form name="form" novalidate class="my-form">名称:<input type="text" ng-model="user.name" required/><br/>电子邮件:<input type="text" ng-model="user.email" required/><br/><button ng-click="save(user)" ng-disabled="form.$invalid">保存</button></表单>

控制器

function MyCtrl($scope) {$scope.save = 函数(用户){控制台日志(用户名)；};$scope.user = {};};$(函数(){$("按钮").button();});

解决方案

问题在于 angular，你应该制定指令来应用你的 JQuery 插件.

所以你可以这样做:

//注意:指令默认是基于属性的.app.directive('jqButton', {链接:函数(范围，元素，属性){//设置你的按钮.elem.button();//观察传递到 jq-button-disabled 属性的任何内容//并使用该值切换禁用状态.scope.$watch(attr.jqButtonDisabled, function(value) {$("button" ).button( "option", "disabled", value );});}});

然后在标记中

<button jq-button jq-button-disabled="myForm.$invalid" ng-click="doWhatever()">我的按钮</button>

I would like to disable my jQuery button based on form validation. According to the docs this is fairly easy with regular buttons using syntax such as:

 <button ng-click="save(user)" ng-disabled="form.$invalid">Save</button>

However, when changing to a jQuery UI button this no longer works. I assume that Angular has no real binding between jQuery UI and AngularJS and thus would require a directive to do the following:

$("button" ).button( "option", "disabled" );

Is that the case or are there other alternatives? A jsFiddle of what I'm trying to do is here: http://jsfiddle.net/blakewell/vbMnN/.

My code looks like this:

View

<div ng-app ng-controller="MyCtrl">
    <form name="form" novalidate class="my-form">
        Name: <input type="text" ng-model="user.name" required /><br/>
        Email: <input type="text" ng-model="user.email" required/><br/>
        <button ng-click="save(user)" ng-disabled="form.$invalid">Save</button>
    </form>
</div>

Controller

function MyCtrl($scope) {
    $scope.save = function (user) {
        console.log(user.name);
    };

    $scope.user = {};

};

$(function () {
    $("button").button();
});

解决方案

Well the thing is with angular, you're supposed to be making directives to apply your JQuery plugins.

So here you could to this:

//NOTE: directives default to be attribute based.

app.directive('jqButton', {
   link: function(scope, elem, attr) {
      //set up your button.
      elem.button();

      //watch whatever is passed into the jq-button-disabled attribute
      // and use that value to toggle the disabled status.
      scope.$watch(attr.jqButtonDisabled, function(value) {
         $("button" ).button( "option", "disabled", value );
      });
   }
});

and then in markup

<button jq-button jq-button-disabled="myForm.$invalid" ng-click="doWhatever()">My Button</button>

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