[英]how to get selected button value into the input text box to bind values angularjs
如何将选定的按钮值输入文本框? 如果我在输入框中更改文本,则必须将该文本绑定到按钮值..我有一个用jquery解决的代码,但是如何用angularjs解决呢? JSBin编辑链接
AngularJS
var app = angular.module('myapp', []); app.controller('MainCtrl', function($scope) { //Code goes here// });
<!DOCTYPE html> <html ng-app="myapp"> <head> <script src="https://code.angularjs.org/1.4.8/angular.js"></script> </head> <body ng-controller="MainCtrl"> <div> <button>Feed</button> <button>the</button> <button>Input</button> </div> <input type="text" value="click a button"> </body> </html>
用jQuery解决
var actualButton; $( "button" ).click(function() { actualButton = $(this); var text = $( this ).text(); $( "input" ).val( text ); }); $("input").on('keyup', function(e){ if(actualButton === undefined) return; actualButton.text($(this).val()); });
您需要结合使用ngModel和ngClick的数据绑定技术。 也许是这样的:
<script src="https://code.angularjs.org/1.4.8/angular.js"></script> <script>angular.module('demo', []);</script> <div ng-app="demo"> <div> <button ng-click="i = 1" ng-init="button1 = 'Feed'">{{ button1 }}</button> <button ng-click="i = 2" ng-init="button2 = 'the'">{{ button2 }}</button> <button ng-click="i = 3" ng-init="button3 = 'Input'">{{ button3 }}</button> </div> <input type="text" ng-model="this['button' + i]" placeholder="click a button"> </div>
只需在按钮上添加ng-click
函数,然后将$event
对象传递给它即可。 这样您就可以访问触发事件的DOM。
但是我个人不会像尝试在控制器内部直接访问DOM那样使用此方法。
标记
<div>
<button ng-click="buttonClick($event)">Feed</button>
<button ng-click="buttonClick($event)">the</button>
<button ng-click="buttonClick($event)">Input</button>
</div>
<input type="text" ng-model="inputValue" value="click a button">
控制者
var app = angular.module('myapp', []);
app.controller('MainCtrl', function($scope) {
$scope.inputValue = 'click a button';
$scope.buttonClick = function(event){
console.log(event);
$scope.inputValue = event.target.innerText;
};
});
角度方法是您可以使用ng-repeat
数组渲染按钮,并将那些按钮置于作用域自身内部。 并从click对象传递按钮名称,并将其分配给inputValue
作用域变量。
标记
<div>
<button ng-click="$parent.selected = $index" ng-repeat="button in buttons">{{button.text}}</button>
</div>
<input type="text" ng-model="buttons[selected || 0].text" value="click a button">
码
$scope.buttons = [{text: 'Feed', id: '1'}, {text: 'the', id: '2'}, {text: 'Input', id: '3'}];
您也可以检查PLUNKER DEMO LINK
二手ng-click
, ng-model
和ng-change
在HTML中:
<body ng-controller="MainCtrl">
<h1>Hello Plunker!</h1>
<div>
<button type="button" ng-click="setText($event)">Feed</button>
<button type="button" ng-click="setText($event)">the</button>
<button type="button" ng-click="setText($event)">Input</button>
</div>
<input type="text" ng-model="textVal" ng-change="changeButtonText()">
</body>
和控制器:
$scope.textVal = 'click a button';
$scope.seletetedEvent = {};
$scope.setText = function(element) {
console.log(element);
$scope.seletetedEvent = element;
$scope.textVal = element.currentTarget.innerHTML;
};
$scope.changeButtonText = function(){
$scope.seletetedEvent.currentTarget.innerHTML = $scope.textVal;
};
实际上,您不需要执行任何操作,只需将相同的$ scope变量绑定到文本框和按钮,
视图:
<input ng-model="name" id="txtname" />
<button class="button button-full button-light" >{{name}}</button>
这是工作中的PlunkerApp
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.