我想捕捉下面文本框上的回车键事件。为了更清楚地说明这一点，我使用ng-repeat填充tbody。下面是HTML:
<td><input type="number" id="closeqty{{$index}}" class="pagination-right closefield"
data-ng-model="closeqtymodel" data-ng-change="change($index)" required placeholder="{{item.closeMeasure}}" /></td>
这是我的模块:
angular.module('components', ['ngResource']);
我使用一个资源来填充表，我的控制器代码是:
function Ajaxy($scope, $resource) {
//controller which has resource to populate the table
}
当前回答
这是我的指示:
mainApp.directive('number', function () {
return {
link: function (scope, el, attr) {
el.bind("keydown keypress", function (event) {
//ignore all characters that are not numbers, except backspace, delete, left arrow and right arrow
if ((event.keyCode < 48 || event.keyCode > 57) && event.keyCode != 8 && event.keyCode != 46 && event.keyCode != 37 && event.keyCode != 39) {
event.preventDefault();
}
});
}
};
});
用法:
<input number />
其他回答
尝试
ng-keypress="console.log($event)"
ng-keypress="alert(123)"
什么也没为我做。
Strangley的例子在https://docs.angularjs.org/api/ng/directive/ngKeypress，它做ng-keypress="count = count + 1"，工作。
我找到了一个替代的解决方案，它有按Enter调用按钮的ng-click。
<input ng-model="..." onkeypress="if (event.which==13) document.getElementById('button').click()"/>
<button id="button" ng-click="doSomething()">Done</button>
我有点晚了。但我发现了一个更简单的解决方案，使用自动对焦。这可能是有用的按钮或其他弹出对话框:
<button auto-focus ng-click="func()按钮“> < / >
这应该是好的，如果你想按下按钮onSpace或Enter单击。
<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
Informe your name:<input type="text" ng-model="pergunta" ng-keypress="pressionou_enter($event)" ></input>
<button ng-click="chamar()">submit</button>
<h1>{{resposta}}</h1>
</div>
<script>
var app = angular.module('myApp', []);
//create a service mitsuplik
app.service('mitsuplik', function() {
this.myFunc = function (parametro) {
var tmp = "";
for (var x=0;x<parametro.length;x++)
{
tmp = parametro.substring(x,x+1) + tmp;
}
return tmp;
}
});
//Calling our service
app.controller('myCtrl', function($scope, mitsuplik) {
$scope.chamar = function() {
$scope.resposta = mitsuplik.myFunc($scope.pergunta);
};
//if mitsuplik press [ENTER], execute too
$scope.pressionou_enter = function(keyEvent) {
if (keyEvent.which === 13)
{
$scope.chamar();
}
}
});
</script>
</body>
</html>
另一种方法是使用标准指令ng-keypress="myFunct($event)"
然后在你的控制器中你可以有:
...
$scope.myFunct = function(keyEvent) {
if (keyEvent.which === 13)
alert('I am an alert');
}
...
所有你需要做的事情是获得事件如下:
console.log(angular.element(event.which));
指令可以做到这一点，但你不能这样做。
