我在MVC中有2个DropDown,并尝试使用AngularJS。我的第一个DropDown正确地填充了来自数据库的数据。当用户在第一个DropDown上进行选择时,应根据选择填充第二个DropDown。但是,它不会被触发。我究竟做错了什么?
当我从第一个DropDown中选择时,Chrome控制台显示此错误“ undefined”。但是,它已定义,为什么会显示此错误?
这是我的html代码...
<form name="mainForm" ng-controller="PriceListEditController" novalidate>
<div class="error">{{message}}</div>
<select id="brandSelect" ng-model="brandSelect" ng-options="b.Id as b.Name for b in brands" ng-change="GetBrandPriceList()">
<option value="">Marka Seçiniz</option>
<option ng-repeat="b.Id for b in brands" value="{{b.Id}}">{{b.Name}}</option>
</select>
<select ng-model="priceList" ng-options="b.Id as b.Name for b in priceLists">
<option value="">-- Select Country --</option>
<option ng-repeat="p.Id for p in priceLists" value="{{p.Id}}">{{p.Name}}</option>
</select>
</form>
这是我的JS代码...
var app = angular.module('PriceListEditModule', []);
app.controller('PriceListEditController', ["$scope", "$q", "$http", function ($scope, $q, $http) {
$http({
method: 'GET',
url: '/GetBrands'
}).then(function successCallback(response) {
$scope.brands = response.data;
}, function errorCallback(response) {
$scope.message = 'Unexpected Error ' + response.message;
});
$scope.GetBrandPriceList = function () {
console.log($scope.brandSelect);
var brandId = $scope.brandSelect;
if (brandId>0) {
$http({
method: 'GET',
url: '/GetBrandPriceList'
}).then(function successCallback(response) {
$scope.priceLists = response.data;
}, function errorCallback(response) {
$scope.message = 'Unexpected Error ' + response.message;
});
}
else {
$scope.priceList = null;
}
}
}]);
最佳答案
您可以在同一选择部分中使用ng-options和ng-repeat。
在您的html中尝试一下:
<form name="mainForm" ng-controller="PriceListEditController" novalidate>
<div class="error">{{message}}</div>
<select id="brandSelect" ng-model="brandSelect" ng-change="GetBrandPriceList()">
<option value="">Marka Seçiniz</option>
<option ng-repeat="b in brands" value="{{b.Id}}">{{b.Name}}</option>
</select>
test
<select ng-model="priceList">
<option value="">-- Select Country --</option>
<option ng-repeat="p in priceLists" value="{{p.Id}}">{{p.Name}}</option>
</select>
</form>