我在表格行上有一个Click事件,在这一行中还有一个带有Click事件的删除按钮。当我单击删除按钮时,也会触发行上的单击事件。
这是我的代码。
<tbody>
<tr ng-repeat="user in users" class="repeat-animation" ng-click="showUser(user, $index)">
<td>{{user.firstname}}</td>
<td>{{user.lastname}}</td>
<td>{{user.email}}</td>
<td><button class="btn red btn-sm" ng-click="deleteUser(user.id, $index)">Delete</button></td>
</tr>
</tbody>
当我单击表格单元格中的删除按钮时,如何防止showUser
事件被触发?
答案 0 :(得分:770)
ngClick指令(以及所有其他事件指令)创建在同一范围内可用的$event
变量。此变量是对JS event
对象的引用,可用于调用stopPropagation()
:
<table>
<tr ng-repeat="user in users" ng-click="showUser(user)">
<td>{{user.firstname}}</td>
<td>{{user.lastname}}</td>
<td>
<button class="btn" ng-click="deleteUser(user.id, $index); $event.stopPropagation();">
Delete
</button>
</td>
</tr>
</table>
答案 1 :(得分:120)
Stewie答案的补充。如果您的回调决定是否应该停止传播,我发现将$event
对象传递给回调很有用:
<div ng-click="parentHandler($event)">
<div ng-click="childHandler($event)">
</div>
</div>
然后在回调本身中,您可以决定是否应该停止事件的传播:
$scope.childHandler = function ($event) {
if (wanna_stop_it()) {
$event.stopPropagation();
}
...
};
答案 2 :(得分:10)
我写了一个指令,可以限制点击有效的区域。它可以用于像这样的某些场景,因此您不必根据具体情况处理点击,而只是说“点击不会来自此元素”。
您可以这样使用它:
<table>
<tr ng-repeat="user in users" ng-click="showUser(user)">
<td>{{user.firstname}}</td>
<td>{{user.lastname}}</td>
<td isolate-click>
<button class="btn" ng-click="deleteUser(user.id, $index);">
Delete
</button>
</td>
</tr>
</table>
请注意,这会阻止最后一个单元格的所有点击,而不仅仅是按钮。如果这不是你想要的,你可能想要像这样包装按钮:
<span isolate-click>
<button class="btn" ng-click="deleteUser(user.id, $index);">
Delete
</button>
</span>
这是指令的代码:
angular.module('awesome', []).directive('isolateClick', function() {
return {
link: function(scope, elem) {
elem.on('click', function(e){
e.stopPropagation();
});
}
};
});
答案 3 :(得分:1)
如果你正在使用像我这样的指令,当你需要两个数据方式绑定时,例如在更新任何模型或集合中的属性之后,这就是它的工作原理:
angular.module('yourApp').directive('setSurveyInEditionMode', setSurveyInEditionMode)
function setSurveyInEditionMode() {
return {
restrict: 'A',
link: function(scope, element, $attributes) {
element.on('click', function(event){
event.stopPropagation();
// In order to work with stopPropagation and two data way binding
// if you don't use scope.$apply in my case the model is not updated in the view when I click on the element that has my directive
scope.$apply(function () {
scope.mySurvey.inEditionMode = true;
console.log('inside the directive')
});
});
}
}
}
现在,您可以轻松地在任何按钮,链接,div等中使用它,如下所示:
<button set-survey-in-edition-mode >Edit survey</button>
答案 4 :(得分:-14)
<ul class="col col-double clearfix">
<li class="col__item" ng-repeat="location in searchLocations">
<label>
<input type="checkbox" ng-click="onLocationSelectionClicked($event)" checklist-model="selectedAuctions.locations" checklist-value="location.code" checklist-change="auctionSelectionChanged()" id="{{location.code}}"> {{location.displayName}}
</label>
$scope.onLocationSelectionClicked = function($event) {
if($scope.limitSelectionCountTo && $scope.selectedAuctions.locations.length == $scope.limitSelectionCountTo) {
$event.currentTarget.checked=false;
}
};