Download a file c#

Since the very first versions of the. This includes methods to download files, strings, and arbitrary binary data using byte arrays. The WebClient class also includes methods for uploading resources to web servers. First of all, make sure you have the appropriate using statement in place, as follows. This is needed in order to use the WebClient class without requiring a fully qualified namespace. The WebClient class itself is really easy to use. The very simplest example of downloading a file is as follows.

The DownloadFile method accepts a URL to download a file from and a local file path to download the file to. All of the above happens synchronously i. Unfortunately, the DownloadFile method does not provide a way of reporting progress, as it is a synchronous method. However, there is a built-in way of asynchronously downloading a file and reporting progress with the WebClient class, as demonstrated in the example below.

The above code is very similar to the synchronous example. The DownloadProgressChanged event is fired periodically as the download progresses and provides access to some useful properties such as BytesReceived and ProgressPercentage.

Thats why I wrote an answer that helps with asynchronous download and progressbar implementation — Abdul Saleem. This answer is good, probably better and more detailed than the one with more upvotes. It's almost obvious that one needs a progress indicator while downloading a file.

The asynchronous functionality is a bonus. I was looking for such an implementation. Show 1 more comment. Chris Lee 6 6 bronze badges. WebClient is obsolete see github. Welcome to SO! Generally it's not a good idea to post a low-quality answer to an existing and old question that already has highly upvoted answers. I found my answer from seanb's comment, but truly I prefer this "low-quality" answer over the others. It's complete using statement , concise and easy to understand.

Being an old question is irrelevant, IMHO. But it think the answer with Using is much better, because, i think the WebClient should be disposed after used. Putting it inside using ensures that it is disposed.

It has nothing to do with dispose in this code example The using statement here just show the namespace to use, no that WebClient is use into using to be dispose Complete class to download a file while printing status to console. ComponentModel; using System. IO; using System. Net; using System.

CreateDirectory Path. WriteLine "Downloading file:" ; client. WriteLine "Was not able to download file! Cancelled; if! Write args. WriteLine Environment. Please could you explain why are you using SemaphoreSlim in this context? Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services.

Privacy policy. Thank you. Microsoft makes no warranties, express or implied, with respect to the information provided here. Downloads the specified resource to a local file as an asynchronous operation. These methods do not block the calling thread.

Downloads, to a local file, the resource with the specified URI. This method does not block the calling thread.

The address parameter is null. The fileName parameter is null. The DownloadFile method downloads to a local file data from the URI specified by in the address parameter. This method blocks while downloading the resource. To download a resource and continue executing while waiting for the server's response, use one of the DownloadFileAsync methods.

If the QueryString property is not an empty string, it is appended to address. Note: Although you use asynchronous method, it can block the main thread for a while. If you use directly IP instead of domain name, the DownloadFileAsync method will be fully asynchronous.