System.Net.UploadProgressChangedEventHandler public sealed delegate UploadProgressChangedEventHandler : MulticastDelegate Documentation Code public UploadProgressChangedEventHandler(object object, IntPtr method) public virtual IAsyncResult BeginInvoke(object sender, UploadProgressChangedEventArgs e, AsyncCallback callback, object object) public virtual void EndInvoke(IAsyncResult result) public virtual void Invoke(object sender, UploadProgressChangedEventArgs e)