private void FillStream()
    {
        string        str;
        SqlDataReader rd;

        str = " select * from tbl_TestInstruction, tbl_Paper  ";
        str = str + " WHERE tbl_TestInstruction.Id1 = tbl_Paper.InstructionId ";
        str = str + " and PaperId=" + Session["PaperId"].ToString();

        rd = c1.SelectDr1(str);
        if (rd.Read())
        {
            lbl_PaperType.Text = rd["FixPaper"].ToString();

            if (rd["InstructionType"].ToString() == "Text")
            {
                lbl_Instruction.Text = rd["TestInstruction"].ToString();
            }
            else
            {
                img_Instruction.ImageUrl = rd["PhotoUrl"].ToString();
            }
        }
    }