Many times, having these objects connected and logged in into a mainframe application is the common start and ending point for making a mainframe transacion (CICS transactions are a clear example). So maintaining Tn objects ready for their reuse is a good technique for avoiding unnecessary delays.

In these cases you can acquire a Tn object just by passing the pool name without any object identifier. This way you will get a free Tn object to reuse.

 VB.NET:

 <WebMethod>

 Private Sub Page_Load()

   Dim telnet As Tn3270 = Tn3270.FromPool("Clemson")

        Try

          If Not telnet.IsConnected() Then

            telnet.Host = "clemson.clemson.edu"

            telnet.Port = 23

            telnet.Connect(10000)

          End If

          ...

        Finally

          telnet.Release()

  End Try

 End Sub

 C#:

 [WebMethod]

 public void Connect()

 {

   Tn3270 telnet = Tn3270.FromPool("Clemson");

        try

        {

          if (!telnet.IsConnected())

          {

            telnet.Host = "clemson.clemson.edu";

            telnet.Port = 23;

            telnet.Connect(10000);

          }

          ...

        }

        finally

        {

          telnet.Release();

        }

      }