System.Net.UploadProgressChangedEventHandler public sealed delegate UploadProgressChangedEventHandler : MulticastDelegate Documentation 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)