问题
Is there a way to disable an option in a select element when we populate options with ng-options in AngularJS?
Like this: http://www.w3schools.com/tags/att_option_disabled.asp
You can do it by adding ng-disabled to each <option> tag, but is there a way to do it if we are using the ng-options directive in the select tag?
回答1:
One way to do this is, to forget using ng-options on the select element, and add the options in with ng-repeat, then you can add a ng-disabled check on each option.
http://jsfiddle.net/97LP2/
<div ng-app="myapp">
<form ng-controller="ctrl">
<select id="t1" ng-model="curval">
<option ng-repeat="i in options" value="{{i}}" ng-disabled="disabled[i]">{{i}}</option>
</select>
<button ng-click="disabled[curval]=true">disable</button>
</form>
</div>
a minimal controller for testing:
angular.module('myapp',[]).controller("ctrl", function($scope){
$scope.options=['test1','test2','test3','test4','test5'];
$scope.disabled={};
})
回答2:
From Angular 1.4 :
We can use disable when in ng-options, for example:
$scope.colors = [
{name:'black', shade:'dark'},
{name:'white', shade:'light', notAnOption: true},
{name:'red', shade:'dark'},
{name:'blue', shade:'dark', notAnOption: true},
{name:'yellow', shade:'light', notAnOption: false}
];
$scope.myColor = $scope.colors[2]; // red
This example have colors grouped by shade, with some disabled:
<select ng-model="myColor" ng-options="color.name group by color.shade disable when color.notAnOption for color in colors"></select>
I got this code from the angular documentation.
回答3:
You should use ng-disabled directive http://docs.angularjs.org/api/ng.directive:ngDisabled.
<body ng-app="myApp">
<div ng-controller="myCtrl">
<form class="form-inline">
<div class="form-group">
<select class="form-control" ng-disabled="disableSelect">
<option val="one">First</option>
<option val="two">Second</option>
</select>
</div>
<button class="btn btn-default" ng-click="disableSelect = !disableSelect">
Disable select
</button>
</form>
</div>
</body>
Here you could find the complete example http://jsbin.com/ihOYurO/1/
回答4:
Solve with version 1.4 https://docs.angularjs.org/api/ng/directive/ngOptions [double check you look for v1.4 documentation]
回答5:
Probably something like this
<button ng-click='disableSelect=true'></button>
<select ng-disabled='disableSelect'></select>
来源：https://stackoverflow.com/questions/21002616/how-to-disable-a-option-of-select-element-when-using-angularjs-ng-options