Bruce Adams
Bruce Adams

Reputation: 12310

Getting the upload progress during file upload using Webclient.Uploadfile

I have an app that uploads files to server using the webclient. I'd like to display a progressbar while the file upload is in progress. How would I go about achieving this?

Upvotes: 16

Views: 23523

Answers (2)

Matt Brindley
Matt Brindley

Reputation: 9877

WebClient.UploadFileAsync will allow you to do this.

WebClient webClient = new WebClient();
webClient.UploadFileAsync(address, fileName);
webClient.UploadProgressChanged += WebClientUploadProgressChanged;

...

void WebClientUploadProgressChanged(object sender, UploadProgressChangedEventArgs e)
{
        Console.WriteLine("Upload {0}% complete. ", e.ProgressPercentage);
}

Note that the thread won't block on Upload anymore, so I'd recommend using:

 webClient.UploadFileCompleted += WebClientUploadCompleted;

...

 void WebClientUploadCompleted(object sender, UploadFileCompletedEventArgs e)
 {
     // The upload is finished, clean up
 }

Upvotes: 26

ggponti
ggponti

Reputation: 395

Add your event handler to WebClient.UploadProgressChanged and call WebClient.UploadFileAsync.

See the WebClient.UploadProgressChanged documentation for an example.

Upvotes: 2

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