我正在学习AngularJS,在选择方面也很挣扎。我知道这个问题已经有了答案,但我还是想分享更多的代码。
在我的测试中,我有两个列表框:汽车制造商和汽车模型。模型列表被禁用,直到一些make被选中。如果在制作列表框中的选择稍后被重置(设置为“选择制作”),那么模型列表框再次被禁用,其选择也被重置(为“选择模型”)。make作为资源检索,而模型只是硬编码的。
使得JSON:
[
{"code": "0", "name": "Select Make"},
{"code": "1", "name": "Acura"},
{"code": "2", "name": "Audi"}
]
services.js:
angular.module('makeServices', ['ngResource']).
factory('Make', function($resource){
return $resource('makes.json', {}, {
query: {method:'GET', isArray:true}
});
});
HTML文件:
<div ng:controller="MakeModelCtrl">
<div>Make</div>
<select id="makeListBox"
ng-model="make.selected"
ng-options="make.code as make.name for make in makes"
ng-change="makeChanged(make.selected)">
</select>
<div>Model</div>
<select id="modelListBox"
ng-disabled="makeNotSelected"
ng-model="model.selected"
ng-options="model.code as model.name for model in models">
</select>
</div>
controllers.js:
function MakeModelCtrl($scope)
{
$scope.makeNotSelected = true;
$scope.make = {selected: "0"};
$scope.makes = Make.query({}, function (makes) {
$scope.make = {selected: makes[0].code};
});
$scope.makeChanged = function(selectedMakeCode) {
$scope.makeNotSelected = !selectedMakeCode;
if ($scope.makeNotSelected)
{
$scope.model = {selected: "0"};
}
};
$scope.models = [
{code:"0", name:"Select Model"},
{code:"1", name:"Model1"},
{code:"2", name:"Model2"}
];
$scope.model = {selected: "0"};
}