Seltsames Phänomen beim Senden von Daten

[Neutral General]

Hi,

Ich sende gerade mit einem C# Socket folgendermaßen Daten:

Code:

void Button1Click(object sender, EventArgs e)
{   
  srv.Bind(new IPEndPoint(IPAddress.Any,7));
  srv.Listen(5);

  Socket client = srv.Accept();

  byte[] buff = {0x48,0x61,0x6C,0x6C,0x6F,0x20};            
  client.Send(buff,buff.Length,SocketFlags.None);   
  byte[] buff2 = {0x43,0x68,0x69,0x6E,0x61};
  client.Send(buff2,buff2.Length,SocketFlags.None);   

  client.Shutdown(SocketShutdown.Both);
  client.Close();
}

Jetzt dachte ich mir: Machen wir das ganze noch schöner indem ich en try-finally block drumsetze:

Code:

void Button1Click(object sender, EventArgs e)
{   
  srv.Bind(new IPEndPoint(IPAddress.Any,7));
  srv.Listen(5);

  Socket client = srv.Accept();  
  try
  {
    byte[] buff = {0x48,0x61,0x6C,0x6C,0x6F,0x20};            
    client.Send(buff,buff.Length,SocketFlags.None);   
    byte[] buff2 = {0x43,0x68,0x69,0x6E,0x61};
    client.Send(buff2,buff2.Length,SocketFlags.None);   
  }
  finally
  {
    client.Shutdown(SocketShutdown.Both);
    client.Close();
  }
}

Und was geschieht? buff kommt nichtmehr beim Client an! buff2 schon. Folgendes funktioniert allerdings:

Code:

void Button1Click(object sender, EventArgs e)
{   
  srv.Bind(new IPEndPoint(IPAddress.Any,7));
  srv.Listen(5);

  Socket client = srv.Accept();  
  try
  {
    byte[] buff = {0x48,0x61,0x6C,0x6C,0x6F,0x20};
    byte[] buff2 = {0x43,0x68,0x69,0x6E,0x61};            
    client.Send(buff,buff.Length,SocketFlags.None);      
    client.Send(buff2,buff2.Length,SocketFlags.None);   
  }
  finally
  {
    client.Shutdown(SocketShutdown.Both);
    client.Close();
  }
}

Und wenn ich buff und buff2 vor dem try-finally block deklariere, dann gehts auch.

Gibts dafür eine Erklärung?

Gruß
Neutral General