如何使用AngularJS绑定到复选框值列表？

Question

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">

我想绑定到我的控制器中的列表，这样每当复选框被更改时，控制器都会保留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。

还有另一种方法可以将四个复选框绑定到控制器中的列表吗？

Answer 1

有两种方法可以解决这个问题。 使用简单数组或对象数组。 每种解决方案都有它的优点和缺点。 下面你会发现每个案例一个。

---

用简单的数组作为输入数据

HTML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>

适当的控制器代码将是：

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很容易处理

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

HTML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>

适当的控制器代码将是：

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 ：更复杂的数据结构和按名称切换是麻烦的或需要帮助方法

---

演示 ： http ： //jsbin.com/ImAqUC/1/

Answer 2

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

Answer 3

<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);
        }
    };
}

Answer 4

这是一个快速的小型可重用指令，似乎可以做你想做的事情。 我简单地称它为checkList 。 它会在复选框更改时更新阵列，并在阵列更改时更新复选框。

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显示如何使用它的视图。

<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);
  };
});

（按钮表明更改阵列也会更新复选框。）

最后，这是一个关于Plunker的指令实例： http ：//plnkr.co/edit/3YNLsyoG4PIBW6Kj7dRK？p = preview

Answer 5

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：

• 简单的基元数组
• 对象数组（选择id或整个对象）
• 对象属性迭代

对于主题启动器案例，它将是：

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

Answer 6

Vitaliy Potapov在GitHub上的checklist-model指令绝对适用于我（使用复杂的对象）。

我花了几个小时试图让其他解决方案没有运气。 太棒了，vitalets !!

Answer 7

使用$index字符串可以帮助使用所选值的哈希映射：

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

这样，ng-model对象将使用表示索引的键进行更新。

$scope.someObject = {};

一段时间后， $scope.someObject看起来像：

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

此方法不适用于所有情况，但易于实现。

Answer 8

我认为最简单的解决方法是使用'select'并指定'multiple'：

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

否则，我认为你必须处理列表来构造列表（通过$watch()模型数组绑定与复选框）。

Answer 9

由于您接受了未使用列表的答案，我将假设我的评论问题的答案是“不，它不必是列表”。 我也有这样的印象，也许你是在渲染HTML服务器端，因为样本HTML中存在“已检查”（如果使用ng-model对复选框进行建模，则不需要这样做）。

无论如何，这是我在问这个问题时的想法，也假设您正在生成HTML服务器端：

<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HTML初始设置某些复选框。

小提琴 。

Answer 10

我已经改编了Yoshi接受的处理复杂对象（而不是字符串）的答案。

HTML

<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的

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/

Answer 11

另一个简单的指令可能是：

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 = [];
    };
}]);

和HTML：

<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

Answer 12

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>

在控制器模型中， fruits将是这样的

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

Answer 13

您不必编写所有代码。 AngularJS将使用ngTrueValue和ngFalseValue简化模型和复选框的同步

Codepen： http ：//codepen.io/paulbhartzog/pen/kBhzn

代码段：

<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>

Answer 14

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ng模型中使用getter / setter函数。 这样你就可以使用数组作为真实模型，并在输入模型中“伪造”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;
        }
    }
}

CAVEAT如果你的阵列是大如你不应该使用这种方法myGetterSetter将被调用了很多次。

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

Answer 15

查看这个有效管理复选框列表的指令。 我希望这个对你有用。 CheckList模型

Answer 16

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

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

您可以获得拥有所选项目的阵列。 使用方法alert(JSON.stringify($scope.selected)) ，您可以检查所选项目。

Answer 17

这是另一种解决方案。 我的解决方案的好处：

• 它不需要任何额外的手表（可能会对性能产生影响）
• 它不需要控制器中的任何代码保持清洁
• 代码仍然有点短
• 它需要很少的代码才能在多个地方重用，因为它只是一个指令

这是指令：

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;
            });
        }
    }
}

最后然后就像这样使用它：

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

这就是全部。 唯一的补充是checkbox-array-set属性。

Answer 18

我喜欢Yoshi的回答。 我增强了它，因此您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);
    }
  };
}]);

http://plnkr.co/edit/KcbtzEyNMA8s1X7Hja8p?p=preview

Answer 19

在HTML中（假设复选框位于表中每行的第一列）。

<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>

在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});
};

Answer 20

如果您在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>        

Answer 21

灵感来自上面的Yoshi的帖子。 这是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> 

Answer 22

根据我在这里的其他帖子，我已经制定了一个可重复使用的指令。

查看GitHub存储库

 (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> 

Answer 23

  <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);
        }    
       }
     }   
   })

Answer 24

看看这个： 清单模型 。

它适用于JavaScript数组和对象，它可以使用静态HTML复选框，而不需要ng-repeat

<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 = [];
});

Answer 25

这是一种简单的HTML方法：

 <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')"> 

Answer 26

使用@UmurKontacı的这个例子 ，我认为用于捕获整个另一个对象/数组中的选定数据，如编辑页面。

在数据库中捕获选项

切换一些选项

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种类型的数据对象的， array与一个对象和object含有两个/更多对象数据：

• 选中的两个项目在数据库中捕获：

   [{"id":12,"title":"Branco - #FFFFFF"},{"id":16,"title":"Roxo - #3A0858"}] 

• 选中的一个项目在数据库中捕获：

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

在这里，我的javascript代码：

/**
 * 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]以下重构代码：

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);

而已！

Answer 27

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' }]

在标记上我放了类似下面的内容

<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它的真或假; 如果未选中则为true，缺席/ false为true。

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

希望这可以帮助。

Answer 28

我认为以下方法对于嵌套的ng-repeats更加清晰和有用。 在Plunker上查看 。

从这个帖子引用 ：

<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>

Answer 29

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

这使用了可从http://vitalets.github.io/checklist-model/下载的指令。

这是很好的指令，因为您的应用程序将经常需要此功能。

代码如下：

HTML：

<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的

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');
  };
});

Answer 30

试试我的宝贝：

**

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();
  }
})

**

然后对于带有复选框的任何ng模型，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