[英]Angularjs reset radio input if clicked twice in a row
我有以下jQuery click事件,我试图通过ng-click将其“角度化”,但无法真正弄清楚该如何做。
$('body').on('click change', 'input[type="radio"]:not([disabled])', function(event) {
$(this).prop('checked') //if checked
? $(this).prop('checked',false).data('waschecked', false) //uncheck
: $(this).prop('checked',true).data('waschecked', true); //else check
});
目的是检查该项目是否确实已被选中,如果已选中,请重置单选按钮。
有人能指出我正确的方向吗?
这是非标准行为,但以下示例可以满足您的需求: https : //jsbin.com/sicuhugevu/1/edit?html,js,output
对于那些不想访问JSBin的人:
JS:
angular
.module('test', [])
.controller('testCtrl', function($scope) {
$scope.radios = {
selected: null,
last: null
};
$scope.radioClick = function(event) {
if ($scope.radios.last === $scope.radios.selected) {
$scope.radios.selected = null;
$scope.radios.last = null;
return;
}
$scope.radios.last = event.target.value;
};
});
和HTML:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body data-ng-app="test">
<div data-ng-controller="testCtrl">
<label><input type="radio" name="test" value="1"
data-ng-click="radioClick($event)"
data-ng-model="radios.selected">Option 1</label>
<label><input type="radio" name="test" value="2"
data-ng-click="radioClick($event)"
data-ng-model="radios.selected">Option 2</label>
<label><input type="radio" name="test" value="3"
data-ng-click="radioClick($event)"
data-ng-model="radios.selected">Option 3</label>
</div>
</body>
</html>
和本地版本:
angular .module('test', []) .controller('testCtrl', function($scope) { $scope.radios = { selected: null, last: null }; $scope.radioClick = function(event) { if ($scope.radios.last === $scope.radios.selected) { $scope.radios.selected = null; $scope.radios.last = null; return; } $scope.radios.last = event.target.value; }; });
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script> <meta charset="utf-8"> <title>JS Bin</title> </head> <body data-ng-app="test"> <div data-ng-controller="testCtrl"> <label><input type="radio" name="test" value="1" data-ng-click="radioClick($event)" data-ng-model="radios.selected">Option 1</label> <label><input type="radio" name="test" value="2" data-ng-click="radioClick($event)" data-ng-model="radios.selected">Option 2</label> <label><input type="radio" name="test" value="3" data-ng-click="radioClick($event)" data-ng-model="radios.selected">Option 3</label> </div> </body> </html>
我的建议是为组状态使用一个值,为按钮使用不同的值,然后使用ng-click
将按钮与组状态进行比较。
例如:
<input type="radio" ng-checked="true" ng-model="buttons" value="one" ng-click="radioChanged()">
<input type="radio" ng-checked="false" ng-model="buttons" value="two" ng-click="radioChanged()">
<input type="radio" ng-checked="false" ng-model="buttons" value="three" ng-click="radioChanged()">
$scope.radioChanged = function (){
if ($scope.buttons === $scope.group){
$scope.buttons = undefined;
}
$scope.group = $scope.buttons;
console.log($scope.group, $scope.buttons);
};
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