Generic list in ASP.NET

protected List<DbBroker> getArr()
{
String query = (Session["UserName"] != null) ? Session["UserName"].ToString() : String.Empty;
String squery = (Session["Product"] != null) ? Session["Product"].ToString() : String.Empty;
DbBroker db = new DbBroker();
SqlConnection sc = new SqlConnection(db.conn());
sc.Open();
SqlCommand cmd = new SqlCommand(db.executeQuery(), sc);
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("@nameu", query);
cmd.Parameters.AddWithValue("@name", squery);
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
db.Name = dr.GetString(0);
db.UserName = dr.GetString(1);
db.Bidvalue = Convert.ToInt32(dr.GetInt32(2));
result.Add(db);
}
sc.Close();
return result;
}