用户编辑新建_AngularJS实现

时间：2023-11-12 19:53:26

实现思路：

分步骤完成开发，逐渐添加功能：
1.实现输出users对象。
2.实现点击“编辑”按钮，在表单中显示firstname和lastname，并不可修改。
3.实现“新建用户”和“编辑用户”的切换。
4.实现“创建新用户”按钮。
5.实现“验证”部分。

 <!doctype html>

 <html>

 <head>

 <meta charset="utf-8">

 <title>无标题文档</title>

 <script src="http://apps.bdimg.com/libs/angular.js/1.3.9/angular.min.js"></script>

 </head>

 <body ng-app="myApp" ng-controller="userCtl">

 <table>

 <tr>

 <TD></TD><td>名</td><td>姓</td>

 </tr>

 <tr ng-repeat="user in users">

 <TD><button type="button" ng-click="editUser(user.id)">编辑</button></TD><td>{{user.firstname}}</td><td>{{user.lastname}}</td>

 </tr>

 </table>

 <input type="button" value="创建新用户" ng-click="editUser('new')">

 <h3 ng-show="edit">新建用户</h3>

 <h3 ng-hide="edit">编辑用户</h3>

 <form>

 firstname:<input type="text" name="firstnam" ng-model="firstname" ng-disabled="!edit"><br>

 lastname :<input type="text" name="lastname" ng-model="lastname" ng-disabled="!edit"><br>

 密      码：<input type="password" name="passwd1" ng-model="passwd1"><br>

 重 复 密 码：<input type="password" name="passwd2" ng-model="passwd2" ><br>

 <button ng-disabled="error || incomplete">提交</button>

 </form>

 <script>

 var app=angular.module("myApp",[]);

 app.controller("userCtl",function($scope){

     $scope.firstname='';

     $scope.lastname='';

     $scope.edit=true;

     $scope.users=[{id:1,firstname:'john',lastname:'cena'},{id:2,firstname:'jeff',lastname:'chen'},{id:3,firstname:'bill',lastname:'gates'},];

     $scope.editUser = function(id){

         if(id == 'new'){

             $scope.edit=true;

             $scope.firstname='';

             $scope.lastname='';

         } else {

             $scope.edit = false;

             $scope.firstname=$scope.users[id-1].firstname;

             $scope.lastname=$scope.users[id-1].lastname;

             $scope.passwd1='';

             $scope.passwd2='';

         }

     };

     $scope.error = false;

     $scope.incomplete = false;

     $scope.$watch("firstname",function(){ $scope.test(); });

     $scope.$watch("lastname",function(){ $scope.test(); });

     $scope.$watch("passwd1",function(){ $scope.test(); });

     $scope.$watch("passwd2",function(){　$scope.test(); });

     $scope.test = function(){

         if($scope.passwd1 !== $scope.passwd2) {

             $scope.error = true;

         }

         else {

             $scope.error = false;

         }

         $scope.incomplete = false;

         //新建用户状态，而且四个属性只要有一个没有值，就是未完成状态

         if( $scope.edit &&　( !$scope.firstname.length || !$scope.lastname.length || !$scope.passwd1.length || !$scope.passwd2.length )) {

             $scope.incomplete = true;

         }

     };

 });

 </script>

 </body>

 </html>

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