我创造了js小提琴：
Fiddle
我创建了一个带有一些ng-options的表单,当你使用按钮而不是鼠标时它会有奇怪的行为(只需单击文本框并按“tab”,你就可以使用箭头键选择它).
<form ng-controller="MyApp" id="Apps" name="Apps" ng-submit="SendApp()" role="form" novalidate>
<input type="text" name="title" ng-model="Info.Title" />
<select id="Formula" ng-model ="Info.Genre" ng-change= "ChangeGenre()"
ng-options="id as name for (id,name) in Genre" blank></select>
<select class="form-control" ng-model ="Info.Program"
ng-options="Program as Name for (Program,Name) in Program" ng-change="ChangeProgram()" blank></select>
<h3>{{Info.Genre}}</h3>
<h3>{{Info.Program}}</h3>
<button type=submit>Submit this </button>
</form>
使用Javascript：
var theApp = angular.module("TheApp",[]);
theApp.controller("MyApp",['$scope',function($scope){
$scope.Program = {"1":"Music","2":"Theater","3":"Comedy"};
$scope.Genre = {"1":"Mystery","2":"Thriller","3":"Romance"};
$scope.ChangeProgram = function(){
alert($scope.Info.Program + " " + $scope.Info.Genre);
}
$scope.ChangeGenre = function (){
console.log($scope.Info.Genre);
}
$scope.SendApp = function(){
alert($scope.Info.Program + " " + $scope.Info.Genre);
}
}]);
在第一次尝试时选择第一个选项时,不会更新ng模型.
什么是错的,以及如何解决这个问题？
Update:
正如下面的评论中提到的,要重现,请将鼠标输入文本字段,选项卡到组合框并尝试使用键盘选择第二个选项(Thriller).这将在第一次尝试时失败,一旦选择了第三个或第一个选项,也会识别第二个选项.
解决方法
使用
here建议的指令,这对我有用：
theApp.directive("select",function() {
return {
restrict: "E",require: "?ngModel",scope: false,link: function (scope,element,attrs,ngModel) {
if (!ngModel) {
return;
}
element.bind("keyup",function() {
element.triggerHandler("change");
})
}
}
})
我分叉了fiddle.