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c#.netdownloadwebclientdownloadfileasync

Downloaded file using webclient.DownloadFileAsync has 0KB

I'm trying to download zend-framework (from http://framework.zend.com/releases/ZendFramework-1.11.11/ZendFramework-1.11.11.zip) simply using WebClient

string url = "http://framework.zend.com/releases/ZendFramework-1.11.11/ZendFramework-1.11.11.zip";
WebClient downloader= new WebClient();
downloader.DownloadFileAsync(new Uri(url), "C:\\temp.zip");

The file is created, but it is empty. I checked response using fiddler and I get HTTP 200, correct content-length but "connection: closed" and fiddler shows "-1" in "body" column.

I have tried adding user agent (copied from google chrome request) and "connection: keep-alive" to headers, but none of these helped. I'm also pretty sure, that my program downloaded this file using the same URL once or twice before. There are no errors in events fired by WebClient.

Any ideas?

Solution

  • Just my guess: maybe you can try to keep the WebClient instance in some place would not be garbage collected. When the DownloadFileCompleted event fired, you just clean the reference to the WebClient instance and let GC to reclaim the memory later (and don't forget to call Dispose method).