This explanation assumes knowledge of ASP.NET and provides a basic RedBack example.

This example first connects to a uObject RBO (Customer) and then preserves the RBO Handle. It then does a read to get some state from the RBO Server. We then re-use the object and open the Employee RBO. So that the state is not replaced in that object. The CustomerMaint RBO is then re-openned, but this time we use the object handle not the class name. This tells RedPages to re-use the current RBO instance and refresh the state. The data displayed on the page is therefore from the original state.

 string CustId = "";
 string Name = "";

 private void Page_Load(object sender, System.EventArgs e)
 {
 string custHandle;
 string sessionID;
 REDPAGESLib.RedObject obj = new REDPAGESLib.RedObject();
 REDPAGESLib.RedProperty prop;

 try
 {
    // open CustomerMaint RBO
    obj.Open2("rbexamples", "EXMOD:CustomerMaint", "", "", "");

    //preserve the handle and session id
    custHandle = obj.RBOHandle;
    sessionID = obj.sessionid;
    //now do a read using customer 1
    prop = (REDPAGESLib.RedProperty)obj.Property("CustId");
    prop.Value = "1";
    obj.CallMethod("ReadData");

    obj.Close();

    //now re-use the object on Employee RBO
     obj.Open2("rbexamples", "EXMOD:Employee", "", "", sessionID);

    obj.Close();

    // now re-open Customer using stored handle. We will then get the state for the RBO
    obj.Open2("rbexamples", custHandle,"","",sessionID);

   // get data from refreshed object from backend without calling method!
    prop = (REDPAGESLib.RedProperty)obj.Property("CustId");
    CustId = prop.Value;
    prop = (REDPAGESLib.RedProperty)obj.Property("Name");
    Name = prop.Value;

   // confusing? the point is to show that you can save off the handle to a stateful object
   //  and bring back that stateful object's contents with an open command without
   //  having to call a method to read the data again

    }
    catch (Exception ex)
    {
 	throw ex;
    }

    // the form should now display data for Customer 1
}

See the rbexamplesnetcsharp directory to review the page's entire source code.