如何在Metro应用程序中从System.IO.Stream创建文件? [英] How to create a file from System.IO.Stream in metro apps?

问题描述

Stream stream = await new HttpClient().GetStreamAsync( url );

如何在应用的本地文件夹中创建一个文件，并将通过此流下载的数据作为文件内容?

How can i create a file in app's local folder having data downloaded through this stream as file content?

推荐答案

您可能可以执行某种流以进行流复制.但是，我碰巧只是在代码中使用了响应对象:

You could probably do some kind of stream to stream copy. However, I happen to just use the response object in my code:

var client = new HttpClient();
var response = await client.GetAsync(uri);
if (response.IsSuccessStatusCode)
{
    Stream stream = null;
    StorageFolder localFolder = ApplicationData.Current.TemporaryFolder;
    StorageFile file = await localFolder.CreateFileAsync("savename.htm",
        CreationCollisionOption.ReplaceExisting);
    stream = await file.OpenStreamForWriteAsync();

    await response.Content.CopyToAsync(stream);

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