AngularJS - 选择单选按钮时触发 [英] AngularJS - Trigger when radio button is selected
问题描述
我搜索并尝试了许多 ng-xxxx 类型的选项,但找不到一个..我只想在选择单选按钮时调用控制器中的某些功能.
I searched and tried many ng-xxxx kind of options but couldn't find the one.. I just want to call some function in the controller when radio button is selected.
所以它可能类似于以下..(当然,下面的代码不起作用)
So it might be similar to following..(Of course, below code is not working)
<input type="radio" ng-model="value" value="one" ng-click="checkStuff()"/>
有什么方法可以实现我想要的吗?
Is there any way to achieve what I want?
推荐答案
在单选按钮选择上调用函数的方法至少有 2 种:
There are at least 2 different methods of invoking functions on radio button selection:
1) 使用 ng-change
指令:
<input type="radio" ng-model="value" value="foo" ng-change='newValue(value)'>
然后,在控制器中:
$scope.newValue = function(value) {
console.log(value);
}
这里是 jsFiddle:http://jsfiddle.net/ZPcSe/5/
Here is the jsFiddle: http://jsfiddle.net/ZPcSe/5/
2) 观察模型的变化.这不需要输入级别的任何特殊内容:
2) Watching the model for changes. This doesn't require anything special on the input level:
<input type="radio" ng-model="value" value="foo">
但在控制器中会有:
$scope.$watch('value', function(value) {
console.log(value);
});
还有 jsFiddle:http://jsfiddle.net/vDTRp/2/
And the jsFiddle: http://jsfiddle.net/vDTRp/2/
更多地了解您的用例将有助于提出适当的解决方案.
Knowing more about your the use case would help to propose an adequate solution.
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