Downloading Images in Chunks (Windows Phone 7 App)

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My application uses a large number images (800+) that are stored online in a database which my application uses to connect to them. I am using a background worker to do an Async web request and add them to an ObservableCollection binded to a list.

However I am experiences long waiting times, up to a couple of minutes for 100 images.

I want to decrease this size and download 10 images at a time, so that once loaded x number are shown and the rest are added whilst the list is still fully functional.

Could anyone give me any examples of this or help?

Thank you!

Posted 15-Sep-13 7:27am

SteveBaldwin21

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Sergey Alexandrovich Kryukov 15-Sep-13 14:54pm

This is a right idea, but what problem do you see? Do exactly what you are planning for. Those are different images, so you should not face any technical problems, compared to downloading of single or all images. The only problem would be the logic of the operations, but you are the one who should understand it better, as this is your application.
—SA

SteveBaldwin21 15-Sep-13 15:18pm

The problem I see is the collection modified during enumeration when adding the new images.

Sergey Alexandrovich Kryukov 15-Sep-13 15:44pm

They key is: in the order your want, already processed images are not reordered. When someone post a new image, it should be appended to the list of them, by your own requirement, and it eliminates the problem.
—SA

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