我在ng-repeat中有一个复选框列表:
<div ng-repeat="item in results">
<label class="inlinelabel checkbox">
<input type="checkbox" ng-model="selected[item.id]"><i></i>
</label>
</div>
我想在点击ng-repeat之外的单个复选框时选中所有复选框。
<label> Select All </label>
<input type="checkbox" data-ng-model="selectedAll" ng-click="checkAll()">
我在控制器中尝试了代码,但它无法正常工作。
$scope.checkAll=()=>{
if ($scope.selectedAll) {
$scope.selectedAll = true;
} else {
$scope.selectedAll = false;
}
angular.forEach($scope.employees,function (selected) {
selected[selected.id] = $scope.selectedAll;
});
}
答案 0 :(得分:10)
这里的其他答案确实使得所有复选框都被选中了#34;但我认为这个想法是让底层模型也发生变化,这些答案无法做到。
这是因为当ng-checked
发生变化时,Angular不会更改模型。相反,选择所有&#34;的正确方法;是改变模型 - 而视图就是如此。
<button ng-click="selectAll()">select all</button>
<div ng-repeat="item in items">
<label>
{{item.n}}:
<input type="checkbox" ng-model="selected[item.id]">
</label>
</div>
在控制器中,只需在true
中将所有项目设为selected
:
$scope.selected = {};
$scope.selectAll = function(){
for (var i = 0; i < $scope.items.length; i++) {
var item = $scope.items[i];
$scope.selected[item.id] = true;
}
};
ViewModel&#34;驱动器&#34; View(除了ng-model
之外的双向指令,允许View更改ViewModel,通常基于用户交互),所以每当你想要改变某些东西时,首先要问自己&# 34;我希望ViewModel看起来像#34;而不是View应该如何看待。视图将遵循ViewModel。
答案 1 :(得分:1)
你可以使用&#34; for in loop&#34;实现这个目标
HTML code:
<button ng-click="checkAll()">check all</button>
<div ng-repeat="item in items">
<p>
{{item.n}}:
<input type="checkbox" ng-model="sel[item.id]">
</p>
</div>
控制器代码:
$scope.items = [
{id: 123, name: "checkbox1"},
{id: 234, name: "checkbox2"},
{id: 456, name: "checkbox3"},
{id: 567, name: "checkbox4"},
];
$scope.sel = {};
$scope.checkAll = function()
{
for(i in $scope.items)
$scope.sel[$scope.items[i].id]=true;
}
请查看plunker
中的工作演示答案 2 :(得分:0)
呃, if 代码是不是错了?如果你这样写,它什么都不做。请尝试以下。
if (!$scope.selectedAll) {
$scope.selectedAll = true;
} else {
$scope.selectedAll = false;
}
答案 3 :(得分:0)
最好使用ng-checked
小型工作演示:)
<div ng-controller="MyCtrl">
<div ng-repeat="item in results">
<label class="inlinelabel checkbox">
<input type="checkbox" ng-model="item.id" ng-checked="checkall"><i>{{item.name}}</i>
</label>
</div>
<label> Select All </label>
<input type="checkbox" data-ng-model="selectedAll" ng-click="checkAll()">
</div>
function MyCtrl($scope) {
$scope.checkall=false;
$scope.results=[
{'id':'1','name':'rachit'},
{'id':'2','name':'rachit1'},
{'id':'3','name':'rachit2'}
];
$scope.checkAll=function(){
if ($scope.selectedAll) {
$scope.checkall = true;
} else {
$scope.checkall = false;
}
}
}
这里的小演示:) Fiddle
答案 4 :(得分:0)
通过squiroid使用demo,你也可以这样做: 演示:http://jsfiddle.net/lotusgodkk/jh1svmr0/1/
HTML:
<div ng-controller="MyCtrl">
<div ng-repeat="item in results">
<label class="inlinelabel checkbox">
<input type="checkbox" ng-model="item.id" ng-checked="toggle"><i>{{item.name}}</i>
</label>
</div>
<label>Select All</label>
<input type="checkbox" data-ng-model="selectedAll" ng-click="toggle=!toggle">
</div>
JS:
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.toggle = false;
$scope.results = [{
'id': '1',
'name': 'rachit'
}, {
'id': '2',
'name': 'rachit1'
}, {
'id': '3',
'name': 'rachit2'
}
];
}
答案 5 :(得分:0)
你可以切换复选框并获得这样的值。通过使用linq.js的方式。
<dl ng-controller="selectCtrl">
<dt>
<input type="checkbox" ng-model="selectAll" ng-change="toggleSelect('all')"/> select all
</dt>
<dd ng-repeat="x in list">
<input type="checkbox" ng-model="select[$index]" ng-change="toggleSelect()" ng-true-value="{{x.id}}" ng-false-value="" />{{x.name}}
</dd>
</dl>
var app = angular.module('app', []);
app.controller('selectCtrl', function ($scope) {
$scope.selectAll = false;
$scope.select = [];
$scope.toggleSelect = function (tag) {
if (tag == 'all') {
if ($scope.selectAll) {
$scope.select = $.Enumerable.From($scope.list).Select("$.id").ToArray();
} else {
$scope.select = []
}
} else {
var items = $.Enumerable.From($scope.select).Where('$').ToArray();
$scope.select = $.Enumerable.From($scope.list).Select(function (x) {
if (items.indexOf(x.name) > -1) {
return x.name;
}
return '';
}).ToArray();
$scope.selectAll = !$.Enumerable.From($scope.select).Any('!$');
}
};
$scope.checkSelect = function () {
return $.Enumerable.From($scope.select).Any('$');
};
$scope.list =
[
{id: 1, name: "checkbox1"},
{id: 2, name: "checkbox2"},
{id: 3, name: "checkbox3"},
{id: 4, name: "checkbox4"}
];
});