lazy-loading

问题 Does linq to sql automatically lazy load associated entities? I would think it would but I can't find an article stating it as such. 回答1: Yes, I believe it does. It also has a "load with" feature/semantic that allows you to batch load several things in a shotgun approach. This is useful when you know you'll need related data along with the main entity right off the bat, like to pre-cache all the data you'll need to render a single Web Page etc. 回答2: It depends how you define "lazy-load". If

问题 I'm working on a shopping site. We display 40 images in our results. We're looking to reduce the onload time of our page, and since images block the onload event, I'm considering lazy loading them by initially setting img.src="" and then setting them after onload. Note that this is not ajax loading of html fragments. the image html along with the alt text is present. it's just the image src is deferred. Does anyone have any idea as to whether this may harm SEO or lead to a google penalty box

问题 What is the best practice to use core module service in lazy loaded feature module and feature child modules. As per Angular style guide I have the following app -core - core.module.ts -logger.service.ts -token-interceptor.service.ts -authentication.service.ts -shared -shared.module.ts -base module (my feature base , lazy loaded with router-outlet) -base.module.ts -base.routing.module.ts -base -base.component.ts -admin (lazy loaded , child module of base module) -admin.module.ts -admin

问题 What is the best practice to use core module service in lazy loaded feature module and feature child modules. As per Angular style guide I have the following app -core - core.module.ts -logger.service.ts -token-interceptor.service.ts -authentication.service.ts -shared -shared.module.ts -base module (my feature base , lazy loaded with router-outlet) -base.module.ts -base.routing.module.ts -base -base.component.ts -admin (lazy loaded , child module of base module) -admin.module.ts -admin

问题 For my application as described in this question I want to use MEF to scan the available plugin assemblies and then store all the available import and export information in a serialized format (e.g. a set of strings or a memory stream). This is necessary because I need to transfer the import and export information over an AppDomain boundary without loading the plugin assemblies (essentially I want to delay load the plugins). I found some references, for instance this one or this one but none

问题 I'm a new iPhone developer (of about 4 months or so) who is starting to look at Core Data. In the "Beginning iPhone 3 Development" book by Dave Mark it mentions that the main difference between fetched properties and relationships is that fetched properties allow lazy loading. However, I have seen other resources and accepted answers on this site which suggest that relationships do allow lazy loading. For example, if I have a Department object with a to-many relationship with Employee then I

问题 The Lazy plugin doesn't work fine for me. I've even added alerts to find where the problem is, but everything is ok for me. I try to use this effect of the plugin for my gallery. Here is my website page where I use jQuery.Lazy(). HTML: <div class="gallery-box col-md-9"> <div class="col-md-11 pull-right"> <ul> <li class="lazy"> <a href="images/gallery2/image1.jpg" title="Item 1 title ..." data-desc="Item1 a small cake baked in a cup-shaped foil or paper case" rel="lightbox[group1]"> <img style

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 4 years ago . I'm implementing an Android gallery widget. I'm asking how to lazy (i.e. in a separate thread) load images from the web and persistently cache them? So that on the next run I have the cached images locally available... 回答1: This is how: Lazy load of images in ListView Check the

问题 I have two associated business objects - A and B. the association is (A->B)many-to-one, with B.Id a foreign key in A (so A has A.B_id in the DB). I'm using lazy=true and solved most of my problems, however in A's ToString I want to print also A.B.Id, which I should have without further trips to the DB. but accessing A.B activates the proxy, and since this isn't in the context of an open session, throws an exception. one easy but ugly solution would be to have A.B_id property. but that's part

问题 I'm using Mika Tuupola's Lazy Load plugin http://www.appelsiini.net/projects/lazyload to delay loading images as you scroll down a long image gallery. The problem is after 10 images, I use infinite scrolling so I fetch the next 10 images, and append them via ajax. Lazy Loading no longer works on this next batch of appended images. It's a pretty javascript-heavy image gallery, so for everything else (such as tooltips, modal overlays, etc) I've been using jQuery's delegate() to bind to ajax