我可以将下载图像扩展到多个线程吗? [英] Can I expand downloading images to several threads?

问题描述

我遇到了ListBox的问题，该问题不适用于我的收藏集(嵌套列表框，非静态大小等).我尝试了

I had a problem with ListBox, which doesn't work fine with my collection (nested listboxes, non static size, etc). I tried DeferredLoadListBox, but it requires static height(not my variant).

因此，我尝试将ItemsControl与ScrollViewer一起使用，效果确实很好！我滚动流畅，没有滞后，正是我所需要的.但！据我了解，ListBox仅在需要此内容时才动态下载内容，而ItemsControl一次加载所有内容.

So, I tried ItemsControl with ScrollViewer, and it works realy good! I have smooth scrolling, no lags, its exactly what i needed. But! As I understand, ListBox download content dynamically, only when it need this content, and ItemsControl loads all the content in one time.

这是一个问题，因为我在ItemsControl中加载了40-50个项目的集合，每个项目具有1-4张图像，大约需要5-6秒(比ItemsControl效果更好).据我了解-在这5-6秒钟内，它会下载所有图像. 问题-有什么方法可以将此操作扩展到多个线程，并使用此提示减少ItemsControl's冻结?

And its a problem, because I load in ItemsControl a collection of 40-50 items, and each item has 1-4 images, and it takes about 5-6 seconds(than ItemsControl works great). As I understand - in this 5-6 seconds it downloads all the images. Question - is there any way to expand this operation to several threads, and using this hint reduce the ItemsControl's freezing?

推荐答案

只需使用

Just use LowProfileImageLoader with the standard ListBox

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