Part 6 AngularJS ng repeat directive
ng-repeat is similar to foreach loop in C#.
Let us understand this with an example. Here is what we want to do.
1.
For each employee we have in the employees array we want a table row.
With in each cell of the table row we to display employee
- Firstname
- Lastname
- Gender
- Salary
This can be achieved very easily using ng-repeat directive
Script.js : The controll function builds the model for the view. The model employees has the list of all employees.
var app = angular
.module("myModule", [])
.controller("myController", function ($scope) { var employees = [
{ firstName: "Ben", lastName: "Hastings", gender: "Male", salary: 55000 },
{ firstName: "Sara", lastName: "Paul", gender: "Female", salary: 68000 },
{ firstName: "Mark", lastName: "Holland", gender: "Male", salary: 57000 },
{ firstName: "Pam", lastName: "Macintosh", gender: "Female", salary: 53000 },
{ firstName: "Todd", lastName: "Barber", gender: "Male", salary: 60000 }
]; $scope.employees = employees;
});
HtmlPage1.html : In the view, we are using ng-repeat directive which loops thru each employee in employees array. For each employee, we a get a table row, and in each table cell of the table row, the respective employee details (Firstname, Lastname, Gender, Salary) are retrieved using the angular binding expression
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="Scripts/angular.min.js"></script>
<script src="Scripts/Script.js"></script>
</head>
<body ng-app="myModule">
<div ng-controller="myController">
<table>
<thead>
<tr>
<th>Firstname</th>
<th>Lastname</th>
<th>Gender</th>
<th>Salary</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="employee in employees">
<td> {{ employee.firstName }} </td>
<td> {{ employee.lastName }} </td>
<td> {{ employee.gender }} </td>
<td> {{ employee.salary }} </td>
</tr>
</tbody>
</table>
</div>
</body>
</html>
Script.js : The model is an array of countries. Each country contains an array of cities.
var app = angular
.module("myModule", [])
.controller("myController", function ($scope) { var countries = [
{
name: "UK",
cities: [
{ name: "London" },
{ name: "Birmingham" },
{ name: "Manchester" }
]
},
{
name: "USA",
cities: [
{ name: "Los Angeles" },
{ name: "Chicago" },
{ name: "Houston" }
]
},
{
name: "India",
cities: [
{ name: "Hyderabad" },
{ name: "Chennai" },
{ name: "Mumbai" }
]
}
]; $scope.countries = countries;
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="Scripts/angular.min.js"></script>
<script src="Scripts/Script.js"></script>
</head>
<body ng-app="myModule">
<div ng-controller="myController">
<ul ng-repeat="country in countries">
<li>
{{country.name}}
<ul>
<li ng-repeat="city in country.cities">
{{city.name}}
</li>
</ul>
</li>
</ul>
</div>
</body>
</html>
Finding the index of an item in the collection :
- To find the index of an item in the collection use $index property
- To get the index of the parent element
- Use $parent.$index or
- Use ng-init="parentIndex = $index"
The following example, shows how to retrive the index of the elements from a nested collection
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="Scripts/angular.min.js"></script>
<script src="Scripts/Script.js"></script>
</head>
<body ng-app="myModule">
<div ng-controller="myController">
<ul ng-repeat="country in countries" ng-init="parentIndex = $index"> using ng-init
<li>
{{country.name}} - Index = {{ $index }}
<ul>
<li ng-repeat="city in country.cities">
{{city.name}} - Parent Index = {{ parentIndex }}, Index = {{ $index }}
</li>
</ul>
</li>
</ul>
<ul ng-repeat="country in countries">
<li>
{{country.name}} - Index = {{ $index }}
<ul>
<li ng-repeat="city in country.cities"> using $parent.$index
{{city.name}} - Parent Index = {{ $parent.$index }}, Index = {{ $index }}
</li>
</ul>
</li>
</ul>
</div>
</body> </html>
Part 6 AngularJS ng repeat directive的更多相关文章
- Part 15 AngularJS ng init directive
The ng-init directive allows you to evaluate an expression in the current scope. In the following e ...
- part 4 AngularJS ng src directive
- AngularJs学习笔记--directive
原版地址:http://code.angularjs.org/1.0.2/docs/guide/directive Directive是教HTML玩一些新把戏的途径.在DOM编译期间,directiv ...
- angularjs中的directive scope配置
angularjs中的directive scope配置 定义directive其中重要的一环就是定义scope,scope有三种形式: 默认的scope,DOM元素上原有的scope scope: ...
- AngularJS: 'Template for directive must have exactly one root element' when using 'th' tag in directive template
.controller('HomeController', function($scope,$location) { $scope.userName='天下大势,为我所控!'; $scope.clkU ...
- angularJs中自定义directive的数据交互
首先放官方文档地址:https://docs.angularjs.org/guide/directive 就我对directive的粗浅理解,它一般用于独立Dom元素的封装,应用场合为控件重用和逻辑模 ...
- angularjs自定义指令Directive
今天学习angularjs自定义指令Directive.Directive是一个非常棒的功能.可以实现我们自义的的功能方法. 下面的例子是演示用户在文本框输入的帐号是否为管理员的帐号"Adm ...
- AngularJS中有关Directive的汇总
本篇通过几个例子对AngularJS中的Directive进行汇总. 例子1,单向绑定和双向绑定 <html ng-app="myApp"> <head> ...
- AngularJS自定义指令directive：scope属性 （转载）
原文地址:http://blog.csdn.net/VitaLemon__/article/details/52213103 一.介绍: 在AngularJS中,除了内置指令如ng-click等,我们 ...
随机推荐
- ATSHA204加密认证IC
The Atmel® ATSHA204 is a full turnkey security device. It includes a 4.5Kb EEPROM divided into 16 sl ...
- hdu 4740 The Donkey of Gui Zhou bfs
The Donkey of Gui Zhou Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproble ...
- 財哥面京东dm的经历【帮財哥发的】
关于面京东,感触仅仅有一个,虐的快吐血了.首先说京东分四个板块,有京东商城.京东金融.京东刚收购的拍拍和海外事业部.我这个职位主要是在金融部数据组做数据挖掘和机器学习,还有推荐系统.面试是在周 ...
- 你可能不知道的SQL问题
1. 如下是sql语句和结果, SELECT count(*) AS total FROM orders; +-------+ | total | +-------+ | 150 | +------ ...
- jackson使用示例
Jackson可以轻松的将Java对象转换成json对象和xml文档,同样也可以将json.xml转换成Java对象. Jackson 2.x版提供了三个JAR包供下载: 1. Core库:strea ...
- 如何通过apt-get获得安装包的源码
有时候我们需要获得某个可执行程序的源码,而不仅仅是一个可执行程序,比如我们想获取tree这个工具的源码,这时候就可以采用下面的命令: sudo apt-get source tree pengdl@d ...
- UML 之 各种视图简介
统一建模语言(Unified Modeling Language,UML)中各种视图并没有明显的概念区别. 在最上一层,视图被划分为三个视图域:结构,动态行为,模型管理. 结构主要描述了系统中的结构成 ...
- C# 读取与修改配置文件
System.Configuration.ConfigurationSettings.AppSettings["Key"]; 但是现在FrameWork2.0已经明确表示此属性已经 ...
- oc中的block使用心得
typedef void (^ simpleBlock) (void); typedef double (^multiplyTwoValues)(double, double); typedef vo ...
- Boost.Foreach
BOOST_FOREACH简化了C++的循环遍历序列元素. 支持的序列类型:Boost.Range识别的序列 STL容器 数组 Null-terminated String std::pair of ...