lazy-loading

问题 I want to write a rich domain class such as public class Product { public IEnumerable<Photo> Photos {get; private set;} public void AddPhoto(){...} public void RemovePhoto(){...} } But the entity framework (V4 code first approach) requires an ICollection type for lazy loading! The above code no longer works as designed since clients can bypass the AddPhoto / RemovePhoto method and directly call the add method on ICollection. This is not good. public class Product { public ICollection<Photo>

问题 I'd like to click on every 'Show 10 more deals' on the following page: "https://www.uswitch.com/broadband/compare/deals_and_offers/" but it does not seem to work. I'm stuck having the following error: AttributeError: 'NoneType' object has no attribute 'find_element' My code is the following: from selenium import webdriver from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from selenium.webdriver.common.by import By url =

问题 I'd like to click on every 'Show 10 more deals' on the following page: "https://www.uswitch.com/broadband/compare/deals_and_offers/" but it does not seem to work. I'm stuck having the following error: AttributeError: 'NoneType' object has no attribute 'find_element' My code is the following: from selenium import webdriver from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from selenium.webdriver.common.by import By url =

问题 I've written a script using python in combination with selenium to get all the company links from a webpage which doesn't display all the links until scrolled downmost. However, when I run my script, I get desired links but there are lots of duplicates being scraped along. At this point, I can't get any idea how can I modify my script to get the unique links. Here is what I've tried so far: from selenium import webdriver import time driver = webdriver.Chrome() driver.get('http://fortune.com

问题 I'm trying to get lazy loading to work for my app but it's one issue after another. I've gotten the main route to lazy load which is /admin , now I want to add another route which is /admin/login . So I did this: admin-router.module.ts @NgModule({ imports: [ ComponentsModule, SharedModule, RouterModule.forChild([ { path: '', component: AdminAreaComponent, children: [ { path: 'login', loadChildren: 'app/+admin-area/pages/login/login.module#LoginModule' } ] } ]) ], exports: [ RouterModule ],

问题 well I am using lazyload here http://bloghutsbeta.blogspot.com/2012/03/testing-2_04.html the lazyload is used as a combination with the quicksand jquery. And as quicksand requires a callback so a callback function for lazyload is also added to the quicksand (as if you click buttons like Bicycle, Motorcycle etc, then quicksand requires callback function) here is the callback function: $("img").lazyload({ effect : "fadeIn" }); }); Now my problem is that even when all of the images are cached

问题 I'm trying to develop a generic repository on Entity Framework 5 for get data from any table and I want to use disconnected context without lazy and eager loading. Is it possible? I'm using the code below, but it doesn't works: T it's entity type. public IList<T> GetData(Expression<Func<T, bool>> expression) { using (var context = new Context()) { return context.Set<T>().Where(expression).ToList(); } } Just the main entity it's loaded, the relationships no. 来源： https://stackoverflow.com

问题 The project I'm working on has a massive background image (800px wide by 2585px tall) that slowly scrolls upwards. Before, I was using the code at: http://www.ilike2flash.com/2010/08/endless-scrolling-background-in-as3.html I modified the code to scroll upwards, but in addition to having a weird intermittent bug that occasionally displays a pixel-tall blank line after the image and before looping the next, it really doesn't seem to handle dynamic loading well (I've tried using several

问题 I having a hard time with this one and would appreciate any help, my problem is that I'm building a multiple image carousel in a tableview it contains custom cell with scroll view in each of them the scrollview display images from xml fetched thru the internet which means uiimageview is added runtime as a scrollview subview. I want to lazy load these images so it will not take up too much memory. The samples that I've found only uses 1 scrollview and predefined image count. Thanks in advance!

问题 My app consists of Route /home -> app module Route /dashboard -> Dashboard module Route /profile -> profile module Route /event -> event module Route /services -> services module I am using lazy loading and all works well All navigation combinations after a page reload work well. Not matter from where to where. Eg: Profile -> Dashboard Services -> Dashboard Home -> Dashboard etc But only after a page reload one navigation does not work: event -> Dashboard doesn't work only! All other routing