AngularJS，我怎么选择正确的默认选项元素？ [英] AngularJS, how do I select the correct default option element?
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问题描述
问题：
鉴于Person对象数组，可能的名字的一个单独的数组（包含我们所有的人阵中找到名字的超集），我怎么产生的角标记中设置默认选项（见下文）。
我在一个不知如何设置项目中的名称下拉，使其重新presents名称的价值在人的对象的时候，UI首次加载。
Problem: Given an array of Person objects, and a separate array of possible names (a super-set containing all the names found within our Person array), how do I set the default option within the generated angular markup (see below). I'm at a loss as to how to set the item in the names dropdown so that it represents the value of the name in the person object when the UI first loads.
http://plnkr.co/edit/hvIimscowGvO6Hje35RB?p=$p$ PVIEW
<!DOCTYPE html>
<html>
<head>
<script src="https://code.angularjs.org/1.3.0-beta.5/angular.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<button ng-click="loadData()">Load Data</button>
<ul ng-repeat="person in model.persons" >
<li>name: {{person.name}}
<select ng-select
ng-options="item.name for item in data"
ng-change="updateName(selectedName)"
ng-model="selectedName">
</select>
</li>
<li>age : {{person.age}}</li>
<li>sex : {{person.sex}}</li>
</ul>
<script>
var app=angular.module("app",[]);
app.controller("test",function($scope){
$scope.model={};
$scope.model.persons=[];
$scope.updateName=function(item){
this.person.name = item.name;
}
$scope.data=[{name:'bob'},{name:'Sal'},{name:'Lee'},{name:"Fred"}];
$scope.loadData=function(){
$scope.model.persons=[{name:'bob',age:24,sex:'Yes Please'},
{name:'Sal',age:29,sex:'Not Today'},
{name:'Lee',age:34,sex:'If I must'}];
}
});
angular.bootstrap(document,["app"]);
</script>
推荐答案
一对夫妇的变化：
<ul ng-repeat="person in model.persons" ng-init="selectedName = person.name">
ng-options="item.name as item.name for item in data"
http://plnkr.co/edit/hXGfRZQRz7owxpFZyudB?p=$p$ PVIEW
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