我正在从数据库中提取单独的真/假字符串值。 我给出的示例只是为了说明我实际上从数据库中获取的内容，即 true 或 false 的字符串值，我无法更改它。
我想做的是让一个单选按钮将其值显示为选中(如果为 true)，如果为 false，则不选择。
这一点在我下面的答案中工作得很好，但是当用户选择不同的按钮时，我想将该值设置为“true”并将所有其他值设置为“false”。
我尝试了各种方法，包括 ng-checked，但这不适用于 ng-model。我发现 AngularJS 中的单选按钮非常令人困惑，请问有人可以帮助我理解我应该做什么吗？谢谢你
<!doctype html>
<html ng-app="sample" >
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>Test</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="app/bootstrap/css/bootstrap.css">
<link rel="stylesheet" href="app/css/style.css">
<script src="node_modules/jquery/dist/jquery.min.js"></script>
<script src="app/bootstrap/js/bootstrap.min.js"></script>
<script src="node_modules/angular/angular.js"></script>
<script>
var MyApp = angular.module('sample', []);
MyApp.controller('MainCtrl', function($scope) {
$scope.red = 'true';
$scope.yellow = 'false';
$scope.blue = 'false';
$scope.green = 'false';
$scope.orange = 'false';
$scope.purple = 'false';
$scope.black = 'false';
$scope.pink = 'false';
$scope.white = 'false';
});
</script>
</head>
<body ng-controller="MainCtrl">
<div class="container" ><!-- ng-repeat="x in alien.colours" -->
<h3>What colour alien are you?</h3>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="red" />
<label>Red</label> Value is {{red}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="yellow" />
<label>Yellow</label> Value is {{yellow}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="blue" />
<label>Blue</label> Value is {{blue}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="green" />
<label>Green</label> Value is {{green}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="orange" />
<label>Orange</label> Value is {{orange}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="purple" />
<label>Purple</label> Value is {{purple}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="black" />
<label>Black</label> Value is {{black}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="pink" />
<label>Pink</label> Value is {{pink}}<br>
<input type="radio" name="AliCol" ng-value="'true'" ng-model="white" />
<label>White</label> Value is {{white}}<br>
</div>
</body>
</html>
下面是当您选择不同按钮时发生的情况，值更新为“true”按钮但不能设置为“false”
最佳答案
做到这一点的一种方法(一种非常基本的方法，可以改进很多!)是使用一组对象来为您完成这项工作。
fiddle :https://jsfiddle.net/t3t6kueL/
在你的 Javascript 中，你可以这样做:
var MyApp = angular.module('sample', []);
MyApp.controller('MainCtrl', function($scope) {
$scope.colors = [{
name: 'Red', // name => For presentation
value: 'false' // value => For toggling the group's values
},
{
name: 'Yellow',
value: 'false'
},
{
name: 'Blue',
value: 'false'
},
{
name: 'Green',
value: 'false'
},
{
name: 'Orange',
value: 'false'
},
{
name: 'Purple',
value: 'false'
},
{
name: 'Black',
value: 'false'
},
{
name: 'Pink',
value: 'false'
},
{
name: 'White',
value: 'false'
},
]
// Expose a method to change the group's values
$scope.selectColor = function(selectedColorName) {
// Loop through all of the colors
$scope.colors.forEach(function(color) {
// If this is what's being set, then set this to true
// Note: If there are two different objects, with the same name, you will end up with 2 true values here...
if (color.name === selectedColorName) {
color.value = 'true';
// For all the others, set it to false
} else {
color.value = 'false';
}
});
}
});
这将允许您移动逻辑并处理要呈现给应用程序代码的内容，使您的 HTML 更加简洁，如下所示:
<div class="container">
<h3>What colour alien are you?</h3>
<div ng-repeat="color in colors">
<input type="radio" name="AliCol" ng-click="selectColor(color.name)" />
<label>{{color.name}}</label> Value is {{color.value}}<br>
</div>
</div>
关于javascript - AngularJS 当一个单选按钮值被选择为 true 时，如何将所有单选按钮值更新为 false？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50670143/