The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.
OpenWriteCompletedEventHandler Delegate
.NET Framework 3.0
Represents the method that will handle the OpenWriteCompleted event of a WebClient.
Namespace: System.Net
Assembly: System (in system.dll)
Assembly: System (in system.dll)
public delegate void OpenWriteCompletedEventHandler ( Object sender, OpenWriteCompletedEventArgs e )
/** @delegate */ public delegate void OpenWriteCompletedEventHandler ( Object sender, OpenWriteCompletedEventArgs e )
Not applicable.
Parameters
- sender
The source of the event.
- e
A OpenWriteCompletedEventArgs containing event data.
The following code example demonstrates opening a stream to write data to be uploaded.
public static void OpenResourceForPosting (string address) { WebClient client = new WebClient (); Uri uri = new Uri(address); // Specify that the OpenWriteCallback method gets called // when the writeable stream is available. client.OpenWriteCompleted += new OpenWriteCompletedEventHandler (OpenWriteCallback2); client.OpenWriteAsync (uri); // Applications can perform other tasks // while waiting for the upload to complete. }
The following method is called when the stream is available.
private static void OpenWriteCallback2 (Object sender, OpenWriteCompletedEventArgs e) { Stream body = null; StreamWriter s = null; try { body = (Stream)e.Result; s = new StreamWriter (body); s.AutoFlush = true; s.Write ("This is content data to be sent to the server."); } finally { if (s != null) { s.Close (); } if (body != null) { body.Close (); } } }
Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
Show: