Question

如何将选定的按钮值导入文本框？如果我在输入框中更改文本，必须将该文本绑定到按钮值..我有一个用jquery解决的代码，但如何用angularjs解决这个问题？ JSBin Link to Edit

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>

使用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());
});

Answer 1

您需要将数据绑定技术与ngModel和ngClick结合使用。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>

Answer 2

只需在按钮上添加ng-click函数，就可以传递$event个对象。这样您就可以访问触发事件的DOM。

但我个人不使用这种方法，就像我试图直接在控制器内访问DOM一样。

<强>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">

<强>控制器

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;
    };
});

Plunkr Here

Angular方法是你可以使用ng-repeat数组渲染按钮，并在你自己的范围内拥有这些按钮。并从点击对象传递按钮名称并将其分配给inputValue范围变量。

<强>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">

<强>代码

$scope.buttons = [{text: 'Feed', id: '1'}, {text: 'the', id: '2'}, {text: 'Input', id: '3'}];

Angular way Plunkr

Answer 3

您还可以查看PLUNKER DEMO LINK

使用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;
  };

Answer 4

实际上你不需要做任何事情，只需将相同的$ scope变量绑定到文本框和按钮，

查看：

<input ng-model="name" id="txtname" /> <button class="button button-full button-light" >{{name}}</button>

以下是工作 PlunkerApp

如何将选定的按钮值放入输入文本框以绑定值angularjs

4 个答案: