Asynchronous call timeout

[JMMB]

I'm using the following code to call different ws methods asynchronously. It
works fine.
How could I set a timeout for the asynchonous calls? I tried wait.one, but
didn't work.
thanks a lot.


private void Button1_Click(o bject sender, System.EventArg s e)
{
localhost.Woodg roveOnlineBank bank = new localhost.Woodg roveOnlineBank( );
IAsyncResult ar = bank.BeginGetAc count(1, null, bank);
//...Do various asynchonous calls...

//...Get the results...
localhost.Acct acct = bank.EndGetAcco unt(ar);
Label1.Text = string.Format(" The account {0} has a balance of {1:c}",
acct.descriptio n, acct.balance);
}