Web file download c#

Active 2 years, 9 months ago. Viewed 72k times. Community Bot 1 1 1 silver badge. Krishna Kumar Krishna Kumar 4, 13 13 gold badges 44 44 silver badges 46 46 bronze badges. Add a comment. Active Oldest Votes. John Sheehan John Sheehan This is the slowest! I would recommend using a Socket approach to download as thats the fastest possible solution — SSpoke.

I interpreted fastest as "with as few letters of code as possible". SSpoke You don't have to use a new instance each time you download a site, you can use a static instance of Webclient to avoid the delay.

Net; using System. ReadToEnd ; Console. IsNullOrEmpty id return Request. CreateResponse HttpStatusCode. OK ; response. Open, FileAccess. Read ; response. ContentDispositionHeaderValue "attachment" ; response. Community Bot 1 1 1 silver badge. Regfor Regfor 8, 1 1 gold badge 33 33 silver badges 51 51 bronze badges.

First thing - this code will cause an exception since you're newing up two FileStream objects pointed at the same file. Second thing is that you do not want to use a "Using" statement, because as soon as the variable goes out of scope,. NET will dispose it and you'll get error messages about the underlying connection being closed.

Should anyone else get here looking to send out a response from a byte array instead of an actual file, you're going to want to use new ByteArrayContent someData instead of StreamContent see here. You may also want to override the base dispose so you can handle your resources correctly when the framework calls it.

I would like to point out that the correct MediaTypeHeaderValue is crucial and to get it dynamic if you have different file types you can do like this.

GetMimeMapping fileName ; response. Does the FileStream get disposed automatically? Show 5 more comments. FromBase64String file. OK ; result. ContentDispositionHeaderValue "attachment" ; result. This actually answers the question — Mick. This would not be a good idea with large files since it loads the entire image into memory. The stream option is better. In this article, I have covered the two main ways of downloading files using C and the.

WebClient makes it really easy to download files, with its high-level API and it is available regardless of what. NET version you are targeting. Use HttpClient whenever you need more control and as the recommended option for new development.

Yes, add me to your mailing list. This site uses Akismet to reduce spam. Learn how your comment data is processed. Home Blog About Contact. How to download files using C 0 May 20, The options When using C there are two main options that. NET provides us with. WebClient Since the very first versions of the. Synchronous example First of all, make sure you have the appropriate using statement in place, as follows.

Net; This is needed in order to use the WebClient class without requiring a fully qualified namespace. Asynchronous example What if we want to download a file asynchronously and report progress? WriteLine "Download file completed. Mitch's comment is the most direct and most accurate answer, lol! Unless you are new to. The idea of this site is not to tell people to google for their answers, the idea of this site is for people to ask questions despite how stupid they are so that when people google in the future the answer will be right here.

Show 1 more comment. Active Oldest Votes. With the WebClient class : using System. Christian C. Thank you, this worked exactly as I wanted! How do you download the file into a folder relative to the application installation's directory? Tareck AppDomain. Add a comment. Jon Skeet Jon Skeet 1. Don't forget IDisposable ;-p But other than a "using" that is exactly what I came in to write Add an async version to the answer?

I don't dare to edit a Skeet post. JohanLarsson: I don't think it's worth revisiting all WebClient answers from years ago to show async versions.