如何刷新删除使用AngularJS一个项目后,项目的列表? [英] How to refresh the list of items after deleting one item using AngularJS?
问题描述
我是新来AngularJS区,我想用的ASP.NET Web API使用它。我现在很努力用清除功能。用户应该能够在该删除后立即从项目列表中删除一个项目时,他成功地删除项,列表应该更新(或刷新)。我已经实现了删除功能,但是,列表不会被删除后更新的,我不知道为什么。
I am a new to AngularJS area and I am trying to use it with ASP.NET Web API. I am struggling right now with the Delete Function. The user should be able to delete an item from a list of items and when he deletes an item successfully, the list should be updated (or refreshed) immediately after that deletion. I already implemented the deletion function, however, the list doesn't get updated after the deletion and I don't know why.
下面是在网页API删除功能的code:
Here's the code of deletion function in Web API:
// DELETE api/<controller>/5
public void Delete(int id)
{
itemRepository.DeleteItem(id);
}
和这里的AngularJS控制器code:
And here's the AngularJS Controller Code:
app.controller('itemsController', ['itemsFactory', 'itemFactory', function (itemsFactory, itemFactory) {
var vm = this;
vm.message = "Welcome to Items Page";
vm.Items= itemsFactory.query();
// callback for ng-click 'deleteItem':
vm.deleteItem = function (aId) {
itemFactory.delete({ id: aId });
vm.Items= itemsFactory.query();
};
}]);
和这里的AngularJS服务code:
And here's the AngularJS Service Code:
app.factory('itemsFactory', function ($resource) {
return $resource('/api/items', {}, {
query: { method: 'GET', isArray: true },
create: { method: 'POST' }
})
});
app.factory('itemFactory', function ($resource) {
return $resource('/api/items/:id', {}, {
show: { method: 'GET' },
update: { method: 'PUT', params: { id: '@id' } },
delete: { method: 'DELETE', params: { id: '@id' } }
})
});
所以,我怎么能得到任何成功的删除操作后立即更新项目列表?
推荐答案
这是因为itemFactory.delete你的情况是异步运行$资源对象。所以,问题是这一行:
That's because itemFactory.delete in your case is $resource object which run asynchronously. So the problem is in this rows:
// callback for ng-click 'deleteItem':
vm.deleteItem = function (aId) {
// You send request to the server
itemFactory.delete({ id: aId });
// You don't get response from the server yet, so your item hasn't deleted.
vm.Items= itemsFactory.query();
};
因此,要完成所有你需要的是更新内部 itemFactory.delete
您vm.Items回调是这样的:
So to accomplish that all you need is update your vm.Items inside itemFactory.delete
callback like this:
vm.deleteItem = function (aId) {
itemFactory.delete({ id: aId }, function () {
// Update your items after you get success response from the server after deleting
vm.Items= itemsFactory.query();
});
};
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