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Code Sample: Programmatically Download File Using C#
While browsing forums today I came across a question which asked for a solution to download a file from a web server programmatically. The solution is very simple and below is the code which achieves the goal. Here I am downloading a file asynchronously on Button Click.
1: private void buttonDownloadFile_Click(object sender, EventArgs e)
2: {
3: string url
4: = @"http://www.onedotnetway.com/wp-content/uploads/2008/08/image35.png";
5:
6: // Create an instance of WebClient
7: WebClient client = new WebClient();
8:
9: // Hookup DownloadFileCompleted Event
10: client.DownloadFileCompleted +=
11: new AsyncCompletedEventHandler(client_DownloadFileCompleted);
12:
13: // Start the download and copy the file to c:\temp
14: client.DownloadFileAsync(new Uri(url), @"c:\temp\image35.png");
15: }
16:
17: void client_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
18: {
19: MessageBox.Show("File downloaded");
20: }
You can also download the file synchronously using WebClient.DownloadFile() method.
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March 3rd, 2009 at 4:31 pm
Hello! Thank you for the post.
I am anxious to know if this will work on computer behind PROXY?
March 3rd, 2009 at 4:35 pm
Thanks. If it does not work then you can set WebClient.UseDefaultCredentials. This should do the trick. And if you have to specify credentials for your proxy explicitly then you can set WebClient.Credentials property.
Hope this helps.
March 3rd, 2009 at 4:38 pm
Thank dude for a quick reply!
I’ll try this.
Good Day!
June 13th, 2009 at 9:08 pm
Hello! Thank you for the post.
June 14th, 2009 at 10:06 am
Bikash,
Thank you for your comment.
August 27th, 2009 at 3:30 pm
Hi,
I need to know if this Code works Successfully for Downloading a file with .pdf extension on my local system drive I’hv tried a similar but failed to do so
I need to download a file opened in a browser with .pdf extension
Plz Help
Help Would Be Appreciated
Himanshu
August 27th, 2009 at 3:34 pm
Hi Himanshu,
It should work fine with any file extension.
August 27th, 2009 at 4:07 pm
HI,
thx for the quick reply
i’ll just check and report back
thx again.
November 21st, 2009 at 9:18 pm
hi all.. very use full article but.. can we use it in web aplication.. on internet.. where ever i get example of WebClient , i get it in window application, in web application, is it possible to add event handler “DownloadDataCompletedEventHandler” to track download complete ? any help on this will be appreciated.. thank u..
January 24th, 2010 at 9:27 pm
aha … thanks for help