这是我的 Controller :
App.controller('LicenseController', ['$scope', 'licenseService', function($scope, licenseService) {
var self = this;
$scope.productTypes = {name:'', productID:''};
self.productTypes = {name:'', productID:''};
$scope.selectedProduct = {name:'', productID:''};
$scope.productVersions = {productVersion:'', versionID:''};
self.productVersions = {productVersion:'', versionID:''};
$scope.fetchProductType = function(){
licenseService.fetchProductType()
.then(
function(d) {
self.productTypes = d;
$scope.productTypes = d;
console.log($scope.productTypes[1].name);
console.log($scope.productTypes[1].productID);
},
function(errResponse){
console.error('Error while fetching Currencies');
}
);
};
$scope.fetchProductType();
$scope.getProductVersions = function(){
console.log($scope.selectedProduct.productID);
licenseService.getProductVersions($scope.selectedProduct.productID)
.then(
function(d) {
$scope.productVersions = d;
self.productVersions = d;
console.log($scope.productVersions[1].productVersion);
console.log($scope.productVersions[1].versionID);
},
function(errResponse){
console.error('Error while creating User.');
}
);
};
}]);
和 HTML:
<tr>
<td>
<label for="sel1">Product Type</label>
<select class="form-control" id="sel1" ng-model=productTypes ng-change="getProductVersions()">
<option ng-repeat="type in ctrl.productTypes" value="" >
{{type.name}}
</option>
</select>
</td>
</tr>
<tr>
<td>
<label for="sel1">Product Version</label>
<select class="form-control" id="ver" ng-model="productVersions" >
<option ng-repeat="version in ctrl.productVersions" value="" >
{{version.productVersion}}
</option>
</select>
</td>
</tr>
ng-change 仅在第一次更改产品类型时触发一次。我还想在更改时传递所选的产品类型。有人可以帮助我如何做到这一点吗？
最佳答案
我遇到了类似的问题。我能够修复它的方法是使用 ng-options 指令，而不是查看选项。
这是 Angular 1.x 文档中的示例:
<select ng-model="myColor" ng-options="color.name group by color.shade for color in colors">
关于javascript - 选择下拉菜单上的 ng-change 和 ng-repeat 仅触发一次，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38533131/