C#•2y ago

❔ Problem with WebClient

Downloading a file using DownloadFile(). What can limit file upload size via WebClient? There are files with a size of 1.4 and 1.5 GB (they have the same size on the server), they are loaded correctly in the browser, but from under the code, via WebClient.DownloadFile() - no, only +- 1.05 GB is loaded

13 Replies

Thinker•2y ago

Is there a reason you're using WebClient?

kolya112OP•2y ago

No, I have been using it for a long time, although I know that it is outdated. What can you recommend for a replacement?

Thinker•2y ago

HttpClient Essentially you just do this

HttpClient client = new();
var response = await client.GetAsync(url);
var file = await Response.Content.ReadAsByteArrayAsync();

HttpClient client = new();
var response = await client.GetAsync(url);
var file = await Response.Content.ReadAsByteArrayAsync();

kolya112OP•2y ago

I have the names of the files to download (one by one) are taken from the array, the values of which are sorted out using foreach. Wouldn't async interfere with this?

Thinker•2y ago

If you await everything properly then it shouldn't be an issue Anywhere something returns a Task, you await it.

kolya112OP•2y ago

Thx

kolya112OP•2y ago

The same thing happened. Initially, everything was fine, when suddenly the process of downloading both files stopped at the same one as on WebClient: 1.05 GB instead of 1.4 and 1.5 GB. I had a try catch block and threw an exception "System.IO.IOException" in System.dll - "An error occurred while copying the content to the stream"

Thinker•2y ago

hmm

Tvde1•2y ago

sounds like something is wrong with the web server

kolya112OP•2y ago

The browser downloads them perfectly. All 1.5 and 1.4 GB. And C# only +- 1.05 GB and then gives an error.

Anton•2y ago

Are you sure this doesn't load the whole thing into memory first?

mindhardt•2y ago

Consider doing HttpClient.GetAsStreamAsync Not sure if it helps tho

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Problem with WebClient