如何在 AngularJS 中使用按键事件? [英] How to use a keypress event in AngularJS?

问题描述

我想在下面的文本框中捕捉回车键按下事件.为了更清楚，我使用 ng-repeat 来填充 tbody.这是 HTML:

这是我的模块:

angular.module('components', ['ngResource']);

我正在使用资源来填充表格，我的控制器代码是:

function Ajaxy($scope, $resource) {//具有填充表的资源的控制器}

解决方案

你需要添加一个指令，像这样:

Javascript:

app.directive('myEnter', function () {返回函数(范围、元素、属性){element.bind("keydown keypress", function (event) {if(event.which === 13) {范围.$应用(函数(){范围.$eval(attrs.myEnter);});event.preventDefault();}});};});

HTML:

<input type="text" my-enter="doSomething()">

I want to catch the enter key press event on the textbox below. To make it more clear I am using a ng-repeat to populate the tbody. Here is the 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>

This is my module:

angular.module('components', ['ngResource']);

I am using a resource to populate the table and my controller code is:

function Ajaxy($scope, $resource) {
//controller which has resource to populate the table 
}

解决方案

You need to add a directive, like this:

Javascript:

app.directive('myEnter', function () {
    return function (scope, element, attrs) {
        element.bind("keydown keypress", function (event) {
            if(event.which === 13) {
                scope.$apply(function (){
                    scope.$eval(attrs.myEnter);
                });

                event.preventDefault();
            }
        });
    };
});

HTML:

<div ng-app="" ng-controller="MainCtrl">
    <input type="text" my-enter="doSomething()">    
</div>

这篇关于如何在 AngularJS 中使用按键事件?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！