如何使用C＃在窗口8中的后台任务中下载图像？问题是代码是中断但是没有任何异常？ [英] How to download image in background task in window 8 using C#? the problem is code is break but m not getting any exception ?

问题描述

string internetUri = SampleItemList [（int）isoSetting.Values [ItemList] + 1] .ImageLink;

StorageFolder folder = Windows.Storage.ApplicationData.Current.LocalFolder;

StorageFile file = await folder.CreateFileAsync（myImage+（（int）isoSetting.Values [RefreshCount] - 1）+.jpg，CreationCollisionOption.ReplaceExisting）;

var downloader = new Windows.Networking.BackgroundTransfer.BackgroundDownloader（）;

DownloadOperation d = downloader.CreateDownload（new Uri（internetUri），file）;

await d.StartAsync （）;

string internetUri = SampleItemList[(int)isoSetting.Values["ItemList"]+1].ImageLink;
StorageFolder folder = Windows.Storage.ApplicationData.Current.LocalFolder;
StorageFile file = await folder.CreateFileAsync("myImage" + ((int)isoSetting.Values["RefreshCount"]-1) + ".jpg", CreationCollisionOption.ReplaceExisting);
var downloader = new Windows.Networking.BackgroundTransfer.BackgroundDownloader();
DownloadOperation d = downloader.CreateDownload(new Uri(internetUri), file);
await d.StartAsync();

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