How can I access data of a remoting object from GUI

[eedych]

Hi all,
I am trying to do a 3-tier application to learn C#. Now I got a WinForm as
GUI, a service, and a remoting object "SqlSender" to connect MSDE. I found
such interesting thing. See following code snippet:

// Host A - Client WinForm - MyGui
....
public void buttonFind_Click(object sender, System.EventArgs e)
{
string cmdStr = "SELECT * FROM table";

// send out SQL command via remote object SqlSender
SqlSender sqlSender = new SqlSender();
sqlSender.sqlSelectRequest(cmdStr);

// !!! problem here, the dataSet1 is EMPTY ?!
sqlSender.printRows(sqlSender.dataSet1);
}

// Host B - SqlSender to connect data base
public class SqlSender : MarshalByRefObject
{...
public void sqlSelectRequest(string cmdStr)
{
try
{
// clear the DataSet from the last operation
dataSet1.Clear();
this.sqlSelectCommand1.CommandText = cmdStr;
this.sqlDataAdapter1.SelectCommand.Connection = sqlConnection1;
sqlConnection1.Open();
this.sqlDataAdapter1.Fill(dataSet1, "table");
sqlConnection1.Close();

//if I put "printRows(dataSet1)", it is ok, dataSet1 already gets the
data
}
...
}
}

It seems that WinForm cannot access the DataSet. How can I show the data
that was retrieved by the Remoting object "SqlSender" in GUI then? Is it
still possible to use DataBinding as if they are locating on one machine? I
tried to delcare the dataSet in "SqlSender" with "static" but it doesn't
help. This question has disturbed me the whole weekend, please help!

cheers,
eedych