Reputation: 12310
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
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
Reputation: 395
Add your event handler to WebClient.UploadProgressChanged and call WebClient.UploadFileAsync.
See the WebClient.UploadProgressChanged documentation for an example.
Upvotes: 2