如何使用AngularJS绑定到复选框值列表?

我有几个复选框:

<input type='checkbox' value="apple" checked>
<input type='checkbox' value="orange">
<input type='checkbox' value="pear" checked>
<input type='checkbox' value="naartjie">

我想绑定到控制器中的列表,以便每当更改复选框时,控制器都会维护一个包含所有已检查值的列表,例如['apple', 'pear']

ng-model似乎只能将一个复选框的值绑定到控制器中的变量。

是否有其他方法可以将四个复选框绑定到控制器中的列表?

644590 次浏览

我认为最简单的解决方法是使用“选择”指定“多个”:

<select ng-model="selectedfruit" multiple ng-options="v for v in fruit"></select>

否则,我认为您必须处理列表才能构建列表 (通过$watch()ing模型数组绑定复选框)。

<input type='checkbox' ng-repeat="fruit in fruits"
ng-checked="checkedFruits.indexOf(fruit) != -1" ng-click="toggleCheck(fruit)">

.

function SomeCtrl ($scope) {
$scope.fruits = ["apple, orange, pear, naartjie"];
$scope.checkedFruits = [];
$scope.toggleCheck = function (fruit) {
if ($scope.checkedFruits.indexOf(fruit) === -1) {
$scope.checkedFruits.push(fruit);
} else {
$scope.checkedFruits.splice($scope.checkedFruits.indexOf(fruit), 1);
}
};
}

这是一个快速的可重用指令,似乎可以做你想要做的事情。我简单地称之为checkList。它在复选框更改时更新数组,并在数组更改时更新复选框。

app.directive('checkList', function() {
return {
scope: {
list: '=checkList',
value: '@'
},
link: function(scope, elem, attrs) {
var handler = function(setup) {
var checked = elem.prop('checked');
var index = scope.list.indexOf(scope.value);


if (checked && index == -1) {
if (setup) elem.prop('checked', false);
else scope.list.push(scope.value);
} else if (!checked && index != -1) {
if (setup) elem.prop('checked', true);
else scope.list.splice(index, 1);
}
};


var setupHandler = handler.bind(null, true);
var changeHandler = handler.bind(null, false);


elem.bind('change', function() {
scope.$apply(changeHandler);
});
scope.$watch('list', setupHandler, true);
}
};
});

这是一个控制器和一个视图,显示了如何使用它。

<div ng-app="myApp" ng-controller='MainController'>
<span ng-repeat="fruit in fruits">
<input type='checkbox' value="\{\{fruit}}" check-list='checked_fruits'> \{\{fruit}}<br />
</span>


<div>The following fruits are checked: \{\{checked_fruits | json}}</div>


<div>Add fruit to the array manually:
<button ng-repeat="fruit in fruits" ng-click='addFruit(fruit)'>\{\{fruit}}</button>
</div>
</div>
app.controller('MainController', function($scope) {
$scope.fruits = ['apple', 'orange', 'pear', 'naartjie'];
$scope.checked_fruits = ['apple', 'pear'];
$scope.addFruit = function(fruit) {
if ($scope.checked_fruits.indexOf(fruit) != -1) return;
$scope.checked_fruits.push(fruit);
};
});

(按钮表明更改数组也会更新复选框。)

最后,这里有一个Plunker指令的例子:http://plnkr.co/edit/3YNLsyoG4PIBW6Kj7dRK?p=preview

有两种方法可以解决这个问题。要么使用一个简单的数组,要么使用一个对象数组。每个解决方案都有它的优点和缺点。下面你会发现每个案例都有一个。


以简单数组作为输入数据

超文本标记语言可能如下所示:

<label ng-repeat="fruitName in fruits">
<input
type="checkbox"
name="selectedFruits[]"
value="\{\{fruitName}}"
ng-checked="selection.indexOf(fruitName) > -1"
ng-click="toggleSelection(fruitName)"
> \{\{fruitName}}
</label>

适当的控制器代码是:

app.controller('SimpleArrayCtrl', ['$scope', function SimpleArrayCtrl($scope) {


// Fruits
$scope.fruits = ['apple', 'orange', 'pear', 'naartjie'];


// Selected fruits
$scope.selection = ['apple', 'pear'];


// Toggle selection for a given fruit by name
$scope.toggleSelection = function toggleSelection(fruitName) {
var idx = $scope.selection.indexOf(fruitName);


// Is currently selected
if (idx > -1) {
$scope.selection.splice(idx, 1);
}


// Is newly selected
else {
$scope.selection.push(fruitName);
}
};
}]);

优点:简单的数据结构和按名称切换易于处理

缺点:添加/删除很麻烦,因为必须管理两个列表(输入和选择)


使用对象数组作为输入数据

超文本标记语言可能如下所示:

<label ng-repeat="fruit in fruits">
<!--
- Use `value="\{\{fruit.name}}"` to give the input a real value, in case the form gets submitted
traditionally


- Use `ng-checked="fruit.selected"` to have the checkbox checked based on some angular expression
(no two-way-data-binding)


- Use `ng-model="fruit.selected"` to utilize two-way-data-binding. Note that `.selected`
is arbitrary. The property name could be anything and will be created on the object if not present.
-->
<input
type="checkbox"
name="selectedFruits[]"
value="\{\{fruit.name}}"
ng-model="fruit.selected"
> \{\{fruit.name}}
</label>

适当的控制器代码是:

app.controller('ObjectArrayCtrl', ['$scope', 'filterFilter', function ObjectArrayCtrl($scope, filterFilter) {


// Fruits
$scope.fruits = [
{ name: 'apple',    selected: true },
{ name: 'orange',   selected: false },
{ name: 'pear',     selected: true },
{ name: 'naartjie', selected: false }
];


// Selected fruits
$scope.selection = [];


// Helper method to get selected fruits
$scope.selectedFruits = function selectedFruits() {
return filterFilter($scope.fruits, { selected: true });
};


// Watch fruits for changes
$scope.$watch('fruits|filter:{selected:true}', function (nv) {
$scope.selection = nv.map(function (fruit) {
return fruit.name;
});
}, true);
}]);

优点:添加/删除非常简单

缺点:有点复杂的数据结构和按名称切换很麻烦或需要一个辅助方法


Demohttp://jsbin.com/ImAqUC/1/

既然你接受了一个没有使用列表的答案,我假设我的评论问题的答案是“不,它不一定是列表”。我也有一种印象,也许你在渲染超文本标记语言服务器端,因为“选中”存在于你的示例超文本标记语言中(如果使用ng-model来建模你的复选框,这就不需要了)。

不管怎样,这是我在问这个问题时想到的,也假设你正在生成服务器端的超文本标记语言:

<div ng-controller="MyCtrl"
ng-init="checkboxes = {apple: true, orange: false, pear: true, naartjie: false}">
<input type="checkbox" ng-model="checkboxes.apple">apple
<input type="checkbox" ng-model="checkboxes.orange">orange
<input type="checkbox" ng-model="checkboxes.pear">pear
<input type="checkbox" ng-model="checkboxes.naartjie">naartjie
<br>\{\{checkboxes}}
</div>

NG-init允许服务器端生成的超文本标记语言最初设置某些复选框。

小提琴

一个简单的解决方案:

<div ng-controller="MainCtrl">
<label ng-repeat="(color,enabled) in colors">
<input type="checkbox" ng-model="colors[color]" /> \{\{color}}
</label>
<p>colors: \{\{colors}}</p>
</div>


<script>
var app = angular.module('plunker', []);


app.controller('MainCtrl', function($scope){
$scope.colors = {Blue: true, Orange: true};
});
</script>

http://plnkr.co/edit/U4VD61?p=preview

我改编了Yoshi的公认答案来处理复杂的对象(而不是字符串)。

超文本标记语言

<div ng-controller="TestController">
<p ng-repeat="permission in allPermissions">
<input type="checkbox" ng-checked="selectedPermissions.containsObjectWithProperty('id', permission.id)" ng-click="toggleSelection(permission)" />
\{\{permission.name}}
</p>


<hr />


<p>allPermissions: | <span ng-repeat="permission in allPermissions">\{\{permission.name}} | </span></p>
<p>selectedPermissions: | <span ng-repeat="permission in selectedPermissions">\{\{permission.name}} | </span></p>
</div>

javascript

Array.prototype.indexOfObjectWithProperty = function(propertyName, propertyValue)
{
for (var i = 0, len = this.length; i < len; i++) {
if (this[i][propertyName] === propertyValue) return i;
}


return -1;
};




Array.prototype.containsObjectWithProperty = function(propertyName, propertyValue)
{
return this.indexOfObjectWithProperty(propertyName, propertyValue) != -1;
};




function TestController($scope)
{
$scope.allPermissions = [
{ "id" : 1, "name" : "ROLE_USER" },
{ "id" : 2, "name" : "ROLE_ADMIN" },
{ "id" : 3, "name" : "ROLE_READ" },
{ "id" : 4, "name" : "ROLE_WRITE" } ];


$scope.selectedPermissions = [
{ "id" : 1, "name" : "ROLE_USER" },
{ "id" : 3, "name" : "ROLE_READ" } ];


$scope.toggleSelection = function toggleSelection(permission) {
var index = $scope.selectedPermissions.indexOfObjectWithProperty('id', permission.id);


if (index > -1) {
$scope.selectedPermissions.splice(index, 1);
} else {
$scope.selectedPermissions.push(permission);
}
};
}

工作示例:http://jsfiddle.net/tCU8v/

基于此线程中的答案,我创建了涵盖所有情况的清单模型指令:

  • 简单原语数组
  • 对象数组(选择id或整个对象)
  • 对象属性迭代

对于主题启动案例,它将是:

<label ng-repeat="fruit in ['apple', 'orange', 'pear', 'naartjie']">
<input type="checkbox" checklist-model="selectedFruits" checklist-value="fruit"> \{\{fruit}}
</label>

我认为下面的方法对于嵌套的ng重复更清晰和有用。在Plunker上查看。

引用此线程

<html ng-app="plunker">
<head>
<title>Test</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.4/angular.min.js"></script>
</head>


<body ng-controller="MainCtrl">
<div ng-repeat="tab in mytabs">


<h1>\{\{tab.name}}</h1>
<div ng-repeat="val in tab.values">
<input type="checkbox" ng-change="checkValues()" ng-model="val.checked"/>
</div>
</div>


<br>
<pre> \{\{selected}} </pre>


<script>
var app = angular.module('plunker', []);


app.controller('MainCtrl', function ($scope,$filter) {
$scope.mytabs = [
{
name: "tab1",
values: [
{ value: "value1",checked:false },
{ value: "value2", checked: false },
{ value: "value3", checked: false },
{ value: "value4", checked: false }
]
},
{
name: "tab2",
values: [
{ value: "value1", checked: false },
{ value: "value2", checked: false },
{ value: "value3", checked: false },
{ value: "value4", checked: false }
]
}
]
$scope.selected = []
$scope.checkValues = function () {
angular.forEach($scope.mytabs, function (value, index) {
var selectedItems = $filter('filter')(value.values, { checked: true });
angular.forEach(selectedItems, function (value, index) {
$scope.selected.push(value);
});


});
console.log($scope.selected);
};
});
</script>
</body>
</html>

另一个简单的指令可能是这样的:

var appModule = angular.module("appModule", []);


appModule.directive("checkList", [function () {
return {
restrict: "A",
scope: {
selectedItemsArray: "=",
value: "@"
},
link: function (scope, elem) {
scope.$watchCollection("selectedItemsArray", function (newValue) {
if (_.contains(newValue, scope.value)) {
elem.prop("checked", true);
} else {
elem.prop("checked", false);
}
});
if (_.contains(scope.selectedItemsArray, scope.value)) {
elem.prop("checked", true);
}
elem.on("change", function () {
if (elem.prop("checked")) {
if (!_.contains(scope.selectedItemsArray, scope.value)) {
scope.$apply(
function () {
scope.selectedItemsArray.push(scope.value);
}
);
}
} else {
if (_.contains(scope.selectedItemsArray, scope.value)) {
var index = scope.selectedItemsArray.indexOf(scope.value);
scope.$apply(
function () {
scope.selectedItemsArray.splice(index, 1);
});
}
}
console.log(scope.selectedItemsArray);
});
}
};
}]);

控制器:

appModule.controller("sampleController", ["$scope",
function ($scope) {
//#region "Scope Members"
$scope.sourceArray = [{ id: 1, text: "val1" }, { id: 2, text: "val2" }];
$scope.selectedItems = ["1"];
//#endregion
$scope.selectAll = function () {
$scope.selectedItems = ["1", "2"];
};
$scope.unCheckAll = function () {
$scope.selectedItems = [];
};
}]);

超文本标记语言:

<ul class="list-unstyled filter-list">
<li data-ng-repeat="item in sourceArray">
<div class="checkbox">
<label>
<input type="checkbox" check-list selected-items-array="selectedItems" value="\{\{item.id}}">
\{\{item.text}}
</label>
</div>
</li>

我还包括一个Plunker:http://plnkr.co/edit/XnFtyij4ed6RyFwnFN6V?p=preview

你不必编写所有代码。AngularJS只需使用ngTrueValue和ngFalseValue即可保持模型和复选框同步

代码在这里:http://codepen.io/paulbhartzog/pen/kBhzn

代码片段:

<p ng-repeat="item in list1" class="item" id="\{\{item.id}}">
<strong>\{\{item.id}}</strong> <input name='obj1_data' type="checkbox" ng-model="list1[$index].data" ng-true-value="1" ng-false-value="0"> Click this to change data value below
</p>
<pre>\{\{list1 | json}}</pre>

有一种方法可以直接处理数组并通过ng-model-options="{ getterSetter: true }"同时使用ng-model。

诀窍是在您的ng-model中使用getter/setter函数。这样您就可以使用数组作为您的真实模型并“伪造”输入模型中的布尔值:

<label ng-repeat="fruitName in ['apple', 'orange', 'pear', 'naartjie']">
<input
type="checkbox"
ng-model="fruitsGetterSetterGenerator(fruitName)"
ng-model-options="{ getterSetter: true }"
> \{\{fruitName}}
</label>

$scope.fruits = ['apple', 'pear']; // pre checked


$scope.fruitsGetterSetterGenerator = function(fruitName){
return function myGetterSetter(nowHasFruit){
if (nowHasFruit !== undefined){


// Setter
fruitIndex = $scope.fruits.indexOf(fruit);
didHaveFruit = (fruitIndex !== -1);
mustAdd = (!didHaveFruit && nowHasFruit);
mustDel = (didHaveFruit && !nowHasFruit);
if (mustAdd){
$scope.fruits.push(fruit);
}
if (mustDel){
$scope.fruits.splice(fruitIndex, 1);
}
}
else {
// Getter
return $scope.user.fruits.indexOf(fruit) !== -1;
}
}
}

洞穴如果你的数组很大,你不应该使用这个方法,因为myGetterSetter会被调用很多次。

有关更多信息,请参阅https://docs.angularjs.org/api/ng/directive/ngModelOptions

使用$index字符串可以帮助使用选定值的哈希图:

<ul>
<li ng-repeat="someItem in someArray">
<input type="checkbox" ng-model="someObject[$index.toString()]" />
</li>
</ul>

这样,ng模型对象就会使用表示索引的键进行更新。

$scope.someObject = {};

一段时间后,$scope.someObject应该看起来像:

$scope.someObject = {
0: true,
4: false,
1: true
};

这种方法并不适用于所有情况,但很容易实现。

您可以组合AngularJS和jQuery。例如,您需要在控制器中定义一个数组$scope.selected = [];

<label ng-repeat="item in items">
<input type="checkbox" ng-model="selected[$index]" ng-true-value="'\{\{item}}'">\{\{item}}
</label>

您可以获得一个拥有选定项目的数组。使用方法alert(JSON.stringify($scope.selected)),您可以检查选定的项目。

  <div ng-app='app' >
<div ng-controller='MainCtrl' >
<ul>
<li ng-repeat="tab in data">
<input type='checkbox' ng-click='change($index,confirm)' ng-model='confirm' />
\{\{tab.name}}
</li>
</ul>
\{\{val}}
</div>
</div>




var app = angular.module('app', []);
app.controller('MainCtrl',function($scope){
$scope.val=[];
$scope.confirm=false;
$scope.data=[
{
name:'vijay'
},
{
name:'krishna'
},{
name:'Nikhil'
}
];
$scope.temp;
$scope.change=function(index,confirm){
console.log(confirm);
if(!confirm){
($scope.val).push($scope.data[index]);
}
else{
$scope.temp=$scope.data[index];
var d=($scope.val).indexOf($scope.temp);
if(d!=undefined){
($scope.val).splice(d,1);
}
}
}
})

这是另一个解决方案。我的解决方案的好处是:

  • 它不需要任何额外的手表(这可能会对性能产生影响)
  • 它不需要控制器中的任何代码来保持它的清洁
  • 码还是有些短
  • 它只需要很少的代码就可以在多个地方重用,因为它只是一个指令

以下是指令:

function ensureArray(o) {
var lAngular = angular;
if (lAngular.isArray(o) || o === null || lAngular.isUndefined(o)) {
return o;
}
return [o];
}


function checkboxArraySetDirective() {
return {
restrict: 'A',
require: 'ngModel',
link: function(scope, element, attrs, ngModel) {
var name = attrs.checkboxArraySet;


ngModel.$formatters.push(function(value) {
return (ensureArray(value) || []).indexOf(name) >= 0;
});


ngModel.$parsers.push(function(value) {
var modelValue = ensureArray(ngModel.$modelValue) || [],
oldPos = modelValue.indexOf(name),
wasSet = oldPos >= 0;
if (value) {
if (!wasSet) {
modelValue = angular.copy(modelValue);
modelValue.push(name);
}
} else if (wasSet) {
modelValue = angular.copy(modelValue);
modelValue.splice(oldPos, 1);
}
return modelValue;
});
}
}
}

在最后,然后像这样使用它:

<input ng-repeat="fruit in ['apple', 'banana', '...']" type="checkbox" ng-model="fruits" checkbox-array-set="\{\{fruit}}" />

仅此而已。唯一增加的是checkbox-array-set属性。

我喜欢Yoshi的回答。我增强了它,这样你就可以对多个列表使用相同的功能。

<label ng-repeat="fruitName in fruits">
<input
type="checkbox"
name="selectedFruits[]"
value="\{\{fruitName}}"
ng-checked="selection.indexOf(fruitName) > -1"
ng-click="toggleSelection(fruitName, selection)"> \{\{fruitName}}
</label>




<label ng-repeat="veggieName in veggies">
<input
type="checkbox"
name="selectedVeggies[]"
value="\{\{veggieName}}"
ng-checked="veggieSelection.indexOf(veggieName) > -1"
ng-click="toggleSelection(veggieName, veggieSelection)"> \{\{veggieName}}
</label>






app.controller('SimpleArrayCtrl', ['$scope', function SimpleArrayCtrl($scope) {
// fruits
$scope.fruits = ['apple', 'orange', 'pear', 'naartjie'];
$scope.veggies = ['lettuce', 'cabbage', 'tomato']
// selected fruits
$scope.selection = ['apple', 'pear'];
$scope.veggieSelection = ['lettuce']
// toggle selection for a given fruit by name
$scope.toggleSelection = function toggleSelection(selectionName, listSelection) {
var idx = listSelection.indexOf(selectionName);


// is currently selected
if (idx > -1) {
listSelection.splice(idx, 1);
}


// is newly selected
else {
listSelection.push(selectionName);
}
};
}]);

在超文本标记语言中(假设复选框位于表中每一行的第一列)。

<tr ng-repeat="item in fruits">
<td><input type="checkbox" ng-model="item.checked" ng-click="getChecked(item)"></td>
<td ng-bind="fruit.name"></td>
<td ng-bind="fruit.color"></td>
...
</tr>

controllers.js文件中:

// The data initialization part...
$scope.fruits = [
{
name: ....,
color:....
},
{
name: ....,
color:....
}
...
];


// The checked or not data is stored in the object array elements themselves
$scope.fruits.forEach(function(item){
item.checked = false;
});


// The array to store checked fruit items
$scope.checkedItems = [];


// Every click on any checkbox will trigger the filter to find checked items
$scope.getChecked = function(item){
$scope.checkedItems = $filter("filter")($scope.fruits,{checked:true});
};

如果同一表单上有多个复选框

控制器代码

vm.doYouHaveCheckBox = ['aaa', 'ccc', 'bbb'];
vm.desiredRoutesCheckBox = ['ddd', 'ccc', 'Default'];
vm.doYouHaveCBSelection = [];
vm.desiredRoutesCBSelection = [];

查看代码

<div ng-repeat="doYouHaveOption in vm.doYouHaveCheckBox">
<div class="action-checkbox">
<input id="\{\{doYouHaveOption}}" type="checkbox" value="\{\{doYouHaveOption}}" ng-checked="vm.doYouHaveCBSelection.indexOf(doYouHaveOption) > -1" ng-click="vm.toggleSelection(doYouHaveOption,vm.doYouHaveCBSelection)" />
<label for="\{\{doYouHaveOption}}"></label>
\{\{doYouHaveOption}}
</div>
</div>


<div ng-repeat="desiredRoutesOption in vm.desiredRoutesCheckBox">
<div class="action-checkbox">
<input id="\{\{desiredRoutesOption}}" type="checkbox" value="\{\{desiredRoutesOption}}" ng-checked="vm.desiredRoutesCBSelection.indexOf(desiredRoutesOption) > -1" ng-click="vm.toggleSelection(desiredRoutesOption,vm.desiredRoutesCBSelection)" />
<label for="\{\{desiredRoutesOption}}"></label>
\{\{desiredRoutesOption}}
</div>
</div>

这是相同的jsFillde链接,http://jsfiddle.net/techno2mahi/Lfw96ja6/

这使用可在http://vitalets.github.io/checklist-model/下载的指令。

这是有指令的好处,因为您的应用程序经常需要此功能。

代码如下:

超文本标记语言:

<div class="container">
<div class="ng-scope" ng-app="app" ng-controller="Ctrl1">
<div class="col-xs-12 col-sm-6">
<h3>Multi Checkbox List Demo</h3>
<div class="well">  <!-- ngRepeat: role in roles -->
<label ng-repeat="role in roles">
<input type="checkbox" checklist-model="user.roles" checklist-value="role"> \{\{role}}
</label>
</div>


<br>
<button ng-click="checkAll()">check all</button>
<button ng-click="uncheckAll()">uncheck all</button>
<button ng-click="checkFirst()">check first</button>
<div>
<h3>Selected User Roles </h3>
<pre class="ng-binding">\{\{user.roles|json}}</pre>
</div>


<br>
<div><b/>Provided by techno2Mahi</b></div>
</div>

javascript

var app = angular.module("app", ["checklist-model"]);
app.controller('Ctrl1', function($scope) {
$scope.roles = [
'guest',
'user',
'customer',
'admin'
];
$scope.user = {
roles: ['user']
};
$scope.checkAll = function() {
$scope.user.roles = angular.copy($scope.roles);
};
$scope.uncheckAll = function() {
$scope.user.roles = [];
};
$scope.checkFirst = function() {
$scope.user.roles.splice(0, $scope.user.roles.length);
$scope.user.roles.push('guest');
};
});

灵感来自上面的Yoshi帖子。 这里是plnkr

(function () {
   

angular
.module("APP", [])
.controller("demoCtrl", ["$scope", function ($scope) {
var dc = this
         

dc.list = [
"Selection1",
"Selection2",
"Selection3"
]


dc.multipleSelections = []
dc.individualSelections = []
         

// Using splice and push methods to make use of
// the same "selections" object passed by reference to the
// addOrRemove function as using "selections = []"
// creates a new object within the scope of the
// function which doesn't help in two way binding.
dc.addOrRemove = function (selectedItems, item, isMultiple) {
var itemIndex = selectedItems.indexOf(item)
var isPresent = (itemIndex > -1)
if (isMultiple) {
if (isPresent) {
selectedItems.splice(itemIndex, 1)
} else {
selectedItems.push(item)
}
} else {
if (isPresent) {
selectedItems.splice(0, 1)
} else {
selectedItems.splice(0, 1, item)
}
}
}
         

}])
   

})()
label {
display: block;
}
<!DOCTYPE html>
<html>


<head>
<link rel="stylesheet" href="style.css" />
</head>


<body ng-app="APP" ng-controller="demoCtrl as dc">
<h1>checkbox-select demo</h1>
      

<h4>Multiple Selections</h4>
<label ng-repeat="thing in dc.list">
<input
type="checkbox"
ng-checked="dc.multipleSelections.indexOf(thing) > -1"
ng-click="dc.addOrRemove(dc.multipleSelections, thing, true)"
> \{\{thing}}
</label>
      

<p>
dc.multipleSelections :- \{\{dc.multipleSelections}}
</p>
      

<hr>
      

<h4>Individual Selections</h4>
<label ng-repeat="thing in dc.list">
<input
type="checkbox"
ng-checked="dc.individualSelections.indexOf(thing) > -1"
ng-click="dc.addOrRemove(dc.individualSelections, thing, false)"
> \{\{thing}}
</label>
      

<p>
dc.invidualSelections :- \{\{dc.individualSelections}}
</p>
      

<script data-require="jquery@3.0.0" data-semver="3.0.0" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.js"></script>
<script data-require="angular.js@1.5.6" data-semver="1.5.6" src="https://code.angularjs.org/1.5.6/angular.min.js"></script>
<script src="script.js"></script>
</body>


</html>

基于我的另一篇文章这里,我做了一个可重用的指令。

查看github仓库

(function () {
   

angular
.module("checkbox-select", [])
.directive("checkboxModel", ["$compile", function ($compile) {
return {
restrict: "A",
link: function (scope, ele, attrs) {
// Defining updateSelection function on the parent scope
if (!scope.$parent.updateSelections) {
// Using splice and push methods to make use of
// the same "selections" object passed by reference to the
// addOrRemove function as using "selections = []"
// creates a new object within the scope of the
// function which doesn't help in two way binding.
scope.$parent.updateSelections = function (selectedItems, item, isMultiple) {
var itemIndex = selectedItems.indexOf(item)
var isPresent = (itemIndex > -1)
if (isMultiple) {
if (isPresent) {
selectedItems.splice(itemIndex, 1)
} else {
selectedItems.push(item)
}
} else {
if (isPresent) {
selectedItems.splice(0, 1)
} else {
selectedItems.splice(0, 1, item)
}
}
}
}
               

// Adding or removing attributes
ele.attr("ng-checked", attrs.checkboxModel + ".indexOf(" + attrs.checkboxValue + ") > -1")
var multiple = attrs.multiple ? "true" : "false"
ele.attr("ng-click", "updateSelections(" + [attrs.checkboxModel, attrs.checkboxValue, multiple].join(",") + ")")
               

// Removing the checkbox-model attribute,
// it will avoid recompiling the element infinitly
ele.removeAttr("checkbox-model")
ele.removeAttr("checkbox-value")
ele.removeAttr("multiple")
               

$compile(ele)(scope)
}
}
}])
   

// Defining app and controller
angular
.module("APP", ["checkbox-select"])
.controller("demoCtrl", ["$scope", function ($scope) {
var dc = this
dc.list = [
"selection1",
"selection2",
"selection3"
]
         

// Define the selections containers here
dc.multipleSelections = []
dc.individualSelections = []
}])
   

})()
label {
display: block;
}
<!DOCTYPE html>
<html>


<head>
<link rel="stylesheet" href="style.css" />
      

</head>
   

<body ng-app="APP" ng-controller="demoCtrl as dc">
<h1>checkbox-select demo</h1>
      

<h4>Multiple Selections</h4>
<label ng-repeat="thing in dc.list">
<input type="checkbox" checkbox-model="dc.multipleSelections" checkbox-value="thing" multiple>
\{\{thing}}
</label>
<p>dc.multipleSelecitons:- \{\{dc.multipleSelections}}</p>
      

<h4>Individual Selections</h4>
<label ng-repeat="thing in dc.list">
<input type="checkbox" checkbox-model="dc.individualSelections" checkbox-value="thing">
\{\{thing}}
</label>
<p>dc.individualSelecitons:- \{\{dc.individualSelections}}</p>
      

<script data-require="jquery@3.0.0" data-semver="3.0.0" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.js"></script>
<script data-require="angular.js@1.5.6" data-semver="1.5.6" src="https://code.angularjs.org/1.5.6/angular.min.js"></script>
<script src="script.js"></script>
</body>


</html>

查看这个有效管理复选框列表的指令。我希望它对你有用。 检查表模型

看看这个:清单模型

它适用于JavaScript数组和对象,并且可以使用静态超文本标记语言复选框,而无需ng-重复

<label><input type="checkbox" checklist-model="roles" value="admin"> Administrator</label>
<label><input type="checkbox" checklist-model="roles" value="customer"> Customer</label>
<label><input type="checkbox" checklist-model="roles" value="guest"> Guest</label>
<label><input type="checkbox" checklist-model="roles" value="user"> User</label>

而JavaScript方面:

var app = angular.module("app", ["checklist-model"]);
app.controller('Ctrl4a', function($scope) {
$scope.roles = [];
});

一种简单的超文本标记语言:

<input type="checkbox"
ng-checked="fruits.indexOf('apple') > -1"
ng-click="fruits.indexOf('apple') > -1 ? fruits.splice(fruits.indexOf('apple'), 1) : fruits.push('apple')">
<input type="checkbox"
ng-checked="fruits.indexOf('orange') > -1"
ng-click="fruits.indexOf('orange') > -1 ? fruits.splice(fruits.indexOf('orange'), 1) : fruits.push('orange')">
<input type="checkbox"
ng-checked="fruits.indexOf('pear') > -1"
ng-click="fruits.indexOf('pear') > -1 ? fruits.splice(fruits.indexOf('pear'), 1) : fruits.push('pear')">
<input type="checkbox"
ng-checked="fruits.indexOf('naartjie') > -1"
ng-click="fruits.indexOf('apple') > -1 ? fruits.splice(fruits.indexOf('apple'), 1) : fruits.push('naartjie')">

以下解决方案似乎是一个不错的选择,

<label ng-repeat="fruit in fruits">
<input
type="checkbox"
ng-model="fruit.checked"
ng-value="true"
> \{\{fruit.fruitName}}
</label>

在控制器模型值fruits将是这样的

$scope.fruits = [
{
"name": "apple",
"checked": true
},
{
"name": "orange"
},
{
"name": "grapes",
"checked": true
}
];

使用@Umur Kontaci的这个例子,我认为在使用中捕获整个另一个对象/数组中的选定数据,例如编辑页面。

在数据库中捕获选项

在此处输入图片描述

切换一些选项

在此处输入图片描述

例如,下面的所有颜色json:

{
"colors": [
{
"id": 1,
"title": "Preto - #000000"
},
{
"id": 2,
"title": "Azul - #005AB1"
},
{
"id": 3,
"title": "Azul Marinho - #001A66"
},
{
"id": 4,
"title": "Amarelo - #FFF100"
},
{
"id": 5,
"title": "Vermelho - #E92717"
},
{
"id": 6,
"title": "Verde - #008D2F"
},
{
"id": 7,
"title": "Cinza - #8A8A8A"
},
{
"id": 8,
"title": "Prata - #C8C9CF"
},
{
"id": 9,
"title": "Rosa - #EF586B"
},
{
"id": 10,
"title": "Nude - #E4CAA6"
},
{
"id": 11,
"title": "Laranja - #F68700"
},
{
"id": 12,
"title": "Branco - #FFFFFF"
},
{
"id": 13,
"title": "Marrom - #764715"
},
{
"id": 14,
"title": "Dourado - #D9A300"
},
{
"id": 15,
"title": "Bordo - #57001B"
},
{
"id": 16,
"title": "Roxo - #3A0858"
},
{
"id": 18,
"title": "Estampado "
},
{
"id": 17,
"title": "Bege - #E5CC9D"
}
]
}

和2种类型的数据对象,array包含一个对象,object包含两个/多个对象数据:

  • 选择的两个项目在数据库中捕获:

    [{"id":12,"title":"Branco - #FFFFFF"},{"id":16,"title":"Roxo - #3A0858"}]
    
  • One item selected catched at the database:

    {"id":12,"title":"Branco - #FFFFFF"}
    

And here, my javascript code:

/**
* Add this code after catch data of database.
*/


vm.checkedColors = [];
var _colorObj = vm.formData.color_ids;
var _color_ids = [];


if (angular.isObject(_colorObj)) {
// vm.checkedColors.push(_colorObj);
_color_ids.push(_colorObj);
} else if (angular.isArray(_colorObj)) {
angular.forEach(_colorObj, function (value, key) {
// vm.checkedColors.push(key + ':' + value);
_color_ids.push(key + ':' + value);
});
}


angular.forEach(vm.productColors, function (object) {
angular.forEach(_color_ids, function (color) {
if (color.id === object.id) {
vm.checkedColors.push(object);
}
});
});


/**
* Add this code in your js function initialized in this HTML page
*/
vm.toggleColor = function (color) {
console.log('toggleColor is: ', color);


if (vm.checkedColors.indexOf(color) === -1) {
vm.checkedColors.push(color);
} else {
vm.checkedColors.splice(vm.checkedColors.indexOf(color), 1);
}
vm.formData.color_ids = vm.checkedColors;
};

我的Html代码:

<div class="checkbox" ng-repeat="color in productColors">
<label>
<input type="checkbox"
ng-checked="checkedColors.indexOf(color) != -1"
ng-click="toggleColor(color)"/>
<% color.title %>
</label>
</div>


<p>checkedColors Output:</p>
<pre><% checkedColors %></pre>

[编辑]下面的重构代码:

function makeCheckedOptions(objectOptions, optionObj) {
var checkedOptions = [];
var savedOptions = [];


if (angular.isObject(optionObj)) {
savedOptions.push(optionObj);
} else if (angular.isArray(optionObj)) {
angular.forEach(optionObj, function (value, key) {
savedOptions.push(key + ':' + value);
});
}


angular.forEach(objectOptions, function (object) {
angular.forEach(savedOptions, function (color) {
if (color.id === object.id) {
checkedOptions.push(object);
}
});
});


return checkedOptions;
}

并调用新方法如下:

vm.checkedColors = makeCheckedOptions(productColors, vm.formData.color_ids);

就是它了!

我在控制器中放了一个数组。

$scope.statuses = [{ name: 'Shutdown - Reassessment Required' },
{ name: 'Under Construction' },
{ name: 'Administrative Cancellation' },
{ name: 'Initial' },
{ name: 'Shutdown - Temporary' },
{ name: 'Decommissioned' },
{ name: 'Active' },
{ name: 'SO Shutdown' }]

在标记上,我放了如下内容

<div ng-repeat="status in $scope.statuses">
<input type="checkbox" name="unit_status" ng-model="$scope.checkboxes[status.name]"> \{\{status.name}}
<br>
</div>
\{\{$scope.checkboxes}}

输出如下,在控制器中,我只需要检查其是否为真或假;检查为真,未检查为无/假。

{
"Administrative Cancellation":true,
"Under Construction":true,
"Shutdown - Reassessment Required":true,
"Decommissioned":true,
"Active":true
}

希望这有帮助。

试试我的宝宝:

**

myApp.filter('inputSelected', function(){
return function(formData){
var keyArr = [];
var word = [];
Object.keys(formData).forEach(function(key){
if (formData[key]){
var keyCap = key.charAt(0).toUpperCase() + key.slice(1);
for (var char = 0; char<keyCap.length; char++ ) {
if (keyCap[char] == keyCap[char].toUpperCase()){
var spacedLetter = ' '+ keyCap[char];
word.push(spacedLetter);
}
else {
word.push(keyCap[char]);
}
}
}
keyArr.push(word.join(''))
word = [];
})
return keyArr.toString();
}
})

**

然后,对于任何带有复选框的ng-model,它将返回您选择的所有输入的字符串:

<label for="Heard about ITN">How did you hear about ITN?: *</label><br>
<label class="checkbox-inline"><input ng-model="formData.heardAboutItn.brotherOrSister" type="checkbox" >Brother or Sister</label>
<label class="checkbox-inline"><input ng-model="formData.heardAboutItn.friendOrAcquaintance" type="checkbox" >Friend or Acquaintance</label>




\{\{formData.heardAboutItn | inputSelected }}


//returns Brother or Sister, Friend or Acquaintance