angular下拉框点击无反应 选择使用AngularJS点击按钮从下拉菜单的所有选项

I want to select all values from a drop down of HTML on ng-click. Here is my HTML code

ng-options="items.postalcode for items in toPostalCodes">

So I want the implementation of selectall() function.

Thanks

解决方案

you can try this way:: Fiddle

fiddleApp.controller('Main', ['$scope', function($scope) {

$scope.toPostalCodes = [

{postalcode:1, name:"Japan"},

{postalcode:4, name:"USA"}

];

$scope.selectedToPostalCodes = [];

$scope.selectall = function(){

$scope.selectedToPostalCodes = [];

angular.forEach($scope.toPostalCodes, function(item){

$scope.selectedToPostalCodes.push( item.postalcode);

});

}

}]);