Need help on passing id to next page on response.redirect

[Bootzilla33]

I am inserting into the database and want to pass the id to the next page via response.redirect but am not sure how to do that. Here is the code I have:

string custsrc = custsrccode.Text;
string name = custname.Text;
string city = custcity.Text;
string state = custstate.Text;
string postcode = custpostalcode.Text;
string actcode = activitycode.SelectedItem.Text;
string id = labelID.Text;
string activityid = labelactivityid.Text;

OracleConnection conn = new OracleConnection(); // C#
conn.ConnectionString = strConnection;
conn.Open();

            OracleCommand cmd = new OracleCommand();
            cmd.Connection = conn;
            cmd.CommandText = "INSERT INTO BUYING\_ACTIVITY (CUSTOMER\_SOURCE\_CODE, CUSTOMER\_NAME, CUSTOMER\_CITY, CUSTOMER\_STATE, CUSTOMER\_POSTAL\_CODE, BUYING\_ACTIVITY\_CODE, ID) " +
            "VALUES (:custsrc, :name, :city, :state, :postcode, :actcode, :id)";


            cmd.Parameters.Add(new OracleParameter("custsrc", custsrc));
            cmd.Parameters.Add(new OracleParameter("name", name));
            cmd.Parameters.Add(new OracleParameter("city", city));
            cmd.Parameters.Add(new OracleParameter("state", state));
            cmd.Parameters.Add(new OracleParameter("postcode", postcode));
            cmd.Parameters.Add(new OracleParameter("actcode", actcode));
            cmd.Parameters.Add(new OracleParameter("id", id));

            cmd.ExecuteNonQuery();
            
            conn.Close();

Response.Redirect("contractinfo.aspx?Id=" + labelRID.Text);

I get nothing on the labelID.Text when I step thru my code and then when it goes to the next page I obviously get nothing as well contractinfo.aspx?Id="" where the "" should be the id value. How do I fix this with the code I have.

[F ES Sitecore]

You read the id from labelID

string id = labelID.Text;

But the ID you are passing on the query string is labelRID

Response.Redirect("contractinfo.aspx?Id=" + labelRID.Text);

If it's the same id use the same label, or just re-use the id variable

Response.Redirect("contractinfo.aspx?Id=" + id);