This article mainly introduces the advanced usage of drop-down boxes in AngularJS. It analyzes the traversal, selection, binding, display and other functions of AngularJS drop-down boxes in the form of examples. Friends who need it can refer to it. I hope it can help everyone.
HTML text:
##
<body ng-app="myApp">
<!-- 对象内部属性遍历：x--key y---value -->
<p ng-controller="myctr01">
{{sites}}<br>
<select ng-model="site" ng-options="x for (x, y) in sites"></select>
选择的网址：<span>{{site}}</span>
</p>
<p ng-controller="myCtrl">
<p>选择一辆车:</p>
<!-- 这里y标识成员元素对象，并且使用该对象的brand属性作为显示文本,select的值与y绑定 -->
<select ng-model="selectedCar" ng-options="y.brand for (x, y) in cars"></select>
<p>你选择的是: {{selectedCar.brand}}</p>
<p>型号为: {{selectedCar.model}}</p>
<p>颜色为: {{selectedCar.color}}</p>
<p>下拉列表中的选项也可以是对象的属性。</p>
</p>
Javascript operation code:
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
//复杂对象
$scope.cars = {
car01 : {brand : "Ford", model : "Mustang", color : "red"},
car02 : {brand : "Fiat", model : "500", color : "white"},
car03 : {brand : "Volvo", model : "XC90", color : "black"} }
//简单对象
$scope.sites = {
site01 : "Google",
site02 : "Baidu",
site03 : "Taobao"
};
});
app.controller("myctr01",function($scope){
$scope.sites = {
site01 : "Google",
site02 : "Baidu",
site03 : "Taobao"
};
}); Effect:
jQuery simulates drop-down box selection corresponding menu
JavaScript implements adding and deleting elements to the select drop-down box instance sharing
angularjs drop-down box implements rendering html
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