public int insertREg()
{
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "INSERT INTO Registration VALUES ('" + R_name + "','" + R_gender + "','" + R_dob + "','" + R_address + "','" + R_Level + "', '" + R_utype + "' ,'" + R_username + "','" + R_password + "' )";
return(con.ExeNonQuery(cmd));
}