我使用角度。 我在一个组中有三个复选框,我想确保只能检查其中一个。因此,如果一个人被检查,其他两个必须不受限制。我可以想到用本机JS或jQuery做这几种方式,但我想知道是否有一种典型的Angular方式。
这是Plunker的复选框和角度控件的设置。 http://plnkr.co/edit/IZmGwktrCaYNyrWjfSqf?p=preview
<body ng-controller="MainCtrl">
<div>
{{vm.Output}}
<br>
<br>
<br>
<label>
<input type="checkbox" name="groupA" ng-model="vm.a1" ng-change="vm.changeGroupA()"> A1 </label>
<label>
<input type="checkbox" name="groupA" ng-model="vm.a2" ng-change="vm.changeGroupA()"> A2 </label>
<label>
<input type="checkbox" name="groupA" ng-model="vm.a3" ng-change="vm.changeGroupA()"> A3 </label>
<br>
<br>
<br> {{vm.Output}}
</body>
答案 0 :(得分:4)
由于您无法使用单选按钮,因此当您检查其他按钮时,我已经取消了这个plnkr:
http://plnkr.co/edit/apSE3cIXA7DIvulBfNGX?p=preview
<label> <input type="checkbox" name="groupA" ng-model="vm.a1" ng-change="vm.a2 = false; vm.a3 = false; vm.changeGroupA()" > A1 </label>
<label> <input type="checkbox" name="groupA" ng-model="vm.a2" ng-change="vm.a1 = false; vm.a3 = false; vm.changeGroupA()" > A2 </label>
<label> <input type="checkbox" name="groupA" ng-model="vm.a3" ng-change="vm.a2 = false; vm.a1 = false; vm.changeGroupA()" > A3 </label>
希望有帮助=)
编辑:您可以更改控制器中其他复选框的状态以获得最佳实践,在html中进行更快速演示...
答案 1 :(得分:1)
另一种方法是:http://plnkr.co/edit/kH12pYkXfY6t6enrlSns
<br><br><br>
<label> <input type="checkbox" name="groupA" ng-model="vm.groupA[0]" ng-change="vm.changeGroupA(0)" > A1 </label>
<label> <input type="checkbox" name="groupA" ng-model="vm.groupA[1]" ng-change="vm.changeGroupA(1)" > A2 </label>
<label> <input type="checkbox" name="groupA" ng-model="vm.groupA[2]" ng-change="vm.changeGroupA(2)" > A3 </label>
<br><br><br>
控制器看起来像这样:
$scope.vm = {
groupA: [false, true, false],
count : 0,
changeGroupA : function (index)
{
for (i = 0, len = this.groupA.length; i < len; ++i) {
this.groupA[i] = ((1 << index) & (1 << i)) > 0;
}
this.Output = '(' + this.count + ')' + this.Output;
this.count ++;
},
Output : 'Here we go'
}
答案 2 :(得分:0)
你可能想要彻底解决这个问题。 http://plnkr.co/edit/A53w4IJMRXQmvRsxa8JA它应该有效
changeGroupA : function (x)
{
if (x === 'A1'){
$scope.vm.a1 = true;
$scope.vm.a2 = false;
$scope.vm.a3 = false;
}
else if (x === 'A2') {
$scope.vm.a2 = true;
$scope.vm.a1 = false;
$scope.vm.a3 = false;
}
else if (x === 'A3') {
$scope.vm.a3 = true;
$scope.vm.a1 = false;
$scope.vm.a2 = false;
}
this.Output = '(' + this.count + ')' + this.Output;
this.count ++;
},
答案 3 :(得分:0)
这对于6或8号角效果很好
HTML:
<div class="custom-control custom-checkbox custom-control-inline">
<input type="checkbox" class="custom-control-input" id="check1id"
[(ngModel)]="check1" (change)="onlyOneValue($event)"/>
<label for="check1id" class="custom-control-label">Checkbox 1</label>
</div>
<div class="custom-control custom-checkbox custom-control-inline">
<input type="checkbox" class="custom-control-input" id="check2id"
[(ngModel)]="check2" (change)="onlyOneValue($event)" />
<label for="check2id" class="custom-control-label"> Checkbox 2 </label>
</div>
.ts代码:
check1=false;
check2=false;
onlyOneValue(e)
{
if (e.target.id == "Check1id") {
this.Check1= true;
this.Check2 = false;
}
else if (e.target.id == "Check1id") {
this.Check1= true;
this.Check2 = false;
}
}
答案 4 :(得分:-1)
为什么不使用单选按钮?
<label>
<input type="radio" name="groupA" ng-model="vm.a1" ng-change="vm.changeGroupA()"> A1 </label>
<label>
<input type="radio" name="groupA" ng-model="vm.a2" ng-change="vm.changeGroupA()"> A2 </label>
<label>
<input type="radio" name="groupA" ng-model="vm.a3" ng-change="vm.changeGroupA()"> A3 </label>