public static void EndCopy(IAsyncResult ar) { StreamCopyState result = (StreamCopyState)ar; if (result.Error != null) { throw result.Error; } }
public static IAsyncResult BeginCopy(Stream from, Stream to, AsyncCallback callback, object state) { byte[] buffer = new byte[32768]; StreamCopyState asyncState = new StreamCopyState(from, to, buffer, callback, state); from.BeginRead(buffer, 0, buffer.Length, asyncState.DataRead, null); return(asyncState); }