DownloadProgressChangedEventArgs Class
Assembly: System (in system.dll)
Instances of this class are passed to the DownloadProgressChangedEventHandler.
The following code example demonstrates setting an event handler for the DownloadProgressChanged event.
// Sample call : DownLoadFileInBackground2 ("http://www.contoso.com/logs/January.txt"); public static void DownLoadFileInBackground2 (string address) { WebClient client = new WebClient (); Uri uri = new Uri(address); // Specify that the DownloadFileCallback method gets called // when the download completes. client.DownloadFileCompleted += new AsyncCompletedEventHandler (DownloadFileCallback2); // Specify a progress notification handler. client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(DownloadProgressCallback); client.DownloadFileAsync (uri, "serverdata.txt"); }
The following code example shows an implementation of a handler for this event.
static void UploadProgressCallback(object sender, UploadProgressChangedEventArgs e) { // Displays the operation identifier, and the transfer progress. Console.WriteLine("{0} uploaded {1} of {2} bytes. {3} % complete...", (string)e.UserState, e.BytesSent, e.TotalBytesToSend, e.ProgressPercentage); } static void DownloadProgressCallback(object sender, DownloadProgressChangedEventArgs e) { // Displays the operation identifier, and the transfer progress. Console.WriteLine("{0} downloaded {1} of {2} bytes. {3} % complete...", (string)e.UserState, e.BytesReceived, e.TotalBytesToReceive, e.ProgressPercentage); }
System.EventArgs
System.ComponentModel.ProgressChangedEventArgs
System.Net.DownloadProgressChangedEventArgs
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.