ng-repeat 与ng-switch的简单应用

效果如下图所示:

使用表格显示用户信息,当点击某条用户信息时,在其下方展开一行进行展示。

index.html

<!DOCTYPE html>

<html ng-app="myApp">
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link rel="stylesheet" href="../css/uikit.css"/>
        <link rel="stylesheet" href="../css/my-uikit.css"/>
    </head>
    <body>
        
        <div class="uk-panel" ng-controller="UserCtrl">
            <table class="uk-table uk-table-hover uk-table-striped">
                <thead class="uk-bg-primary">
                    <tr>
                        <th>Name</th>
                        <th>Email</th>
                    </tr>
                </thead>
                <tbody ng-repeat="user in users" ng-click="selectUser(user)" 
                       ng-switch on="isSelected(user)">
                    <tr>
                        <td>{{user.name}}</td>
                        <td>{{user.email}}</td>
                    </tr>
                    <tr ng-switch-when="true">
                        <td colspan="2" class="uk-bg-success">{{user.desc}}</td>
                    </tr>
                </tbody>
            </table>
        </div>
        
    </body>
    
    <script src="../js/angular.js"></script>
    <script src="index.js"></script>
</html>

index.js

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

myApp.controller('UserCtrl', ['$scope', function($scope){
        $scope.users = [
            {
                name:'张三',
                email:'zhangsan@gmail.com',
                desc: '张三的详细信息...'
            },
            {
                name:'李四',
                email:'lisi@123.com',
                desc: '李四的详细信息...'
            },
            {
                name:'王五',
                email:'wangwu@qq.com',
                desc: '王五的详细信息...'
            }
        ];
        
        $scope.selectUser = function(user){
            $scope.selectedUser = user;
        };
        
        $scope.isSelected = function(user){
            return $scope.selectedUser === user;
        };
}]);

:ng-repeat指令用于渲染集合元素,并持续监视数据源的变化,只要数据源发生变化,其会立即重新渲染视图模板,ng-repeat经过了高度的优化,以便于对DOM书的影响最小化。

:ng-switch on 结合ng-switch-when使用,还有ng-switch-default,其用法与java重点switch用法差不多,on用于制定参数值,ng-switch-when类似于case 。

posted @ 2015-02-04 18:27  yshy  阅读(1363)  评论(0编辑  收藏  举报