How to stop when I don't receive any data anymore?

I am stuck with the following

I am asking for the LIST command on the newsserver
so I will receive all the newsgroups.

I am doing this

Do
bytes = mysocket.Receive(bb, bb.Length, 0)
ListBox1.Items.Add(Encoding.ASCII.GetString(bb))
Loop While bytes > 0


but at the end it lockes up, cause it's getting stuck in that loop
how can I tell it to continue with something else as soon as I don't receive data anymore?

Thanks

I think you can use the Available property of the socket to see if there is any data left in the network buffer for reading.

ms-help://MS.VSCC.2003/MS.MSDNQTR.2003APR.1033/cpref/html/frlrfsystemnetsocketssocketclassavailabletopic.htm

Thanks, will see if I can make this work for VB.NET, since there was no example for it.

Thanks :)