how to display my data grid view control from first to last conditions in single data grid view control of single table at one time

Hi all,

   Good Day! I am using C# Visual Studio 2008 and SQL server 2008. My application what i am doing is, i have 9 tab pages in single tab control. In variable ID i am getting tab page index in 2 power like if index is 0 then ID is 2^0=1. In this i have remote database table tmessage_temp. from this remote data base table i am reading fldTo column for getting ID. if fldTo is 3, then tab page 1 and tab page 2 is set. because of 9 tab pages i  am using loop from 0 to 8. in this loop i am entering into switch(ID). In this i am reading data from remote database and displaying using data grid view. It is not a problem to view in data grid view control for single case. If loop condition coming into switch case from 1 to 3, in data grid control display only the last case. In this i want to display all one by one in single data grid control. How to do this. Can you please giveme a way to do it.

And my code is:

 for (int i = 0; i < 9; i++)
                {

                   ID = Convert.ToInt32(Math.Pow(2, i));
                        switch (ID)
                        {

                        case 1:
                                string cmdtxt = "Select fldMmsg from tmessage_temp where fldTo=" + ID + "";
                                cmd = new SqlCommand(cmdtxt, cn);
                               cmd.CommandType = CommandType.Text;
                                SqlDataAdapter sdr = new SqlDataAdapter(cmd);
                                DataTable dt = new DataTable();
                                DataSet ds = new DataSet();

                                sdr.Fill(dt);
                                ds.Tables.Add(dt);


                        break;

                        case 2:
                        string cmdtxt1 = "Select fldMmsg from tmessage_temp where fldTo=" + ID + "";
                        cmd = new SqlCommand(cmdtxt1, cn);

                        cmd.CommandType = CommandType.Text;

                        SqlDataAdapter sdr1 = new SqlDataAdapter(cmd);
                        DataSet ds1 = new DataSet();
                        DataTable dt1 = new DataTable();

                        sdr1.Fill(dt1);
                        ds1.Tables.Add(dt1);

                        dataGridView2.DataSource = ds1;
                        MessageBox.Show("two");



                        break;
}
}

Thanks & Regards Sasi ................. Go Green