如何更新ObservableCollection中的对象？

Question

我尝试更新ObservableCollection集合内的对象，该集合似乎已更新。但是在View本身中，数据保持不变...

class PostDetailView(DetailView):
    model = Post
    context_object_name = 'post'
    template_name = 'post/post_list.html'

    def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
         context['check_access'] = Access.objects.filter(...)
         return context

页面上的锚点

Item current = Items.FirstOrDefault(i => i.ID == item.ID);
current = current.Remained = current.Count - current.InStock;

当您输入“库存”字符串时，应进行计算，并立即在“保留的”字符串中显示结果。