ต้องการรวมค่า Value ของ checkboxlist ตามตัวอย่าง มีวิธีที่ดีกว่านี้มั้ยครับ.......ชาวยแนะนำให้ด้วยครับ

<asp:CheckBoxList ID="CheckBoxList1" runat="server" RepeatDirection="Horizontal" OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged">                     
   <asp:ListItem Value="64">Sun</asp:ListItem>
   <asp:ListItem Value="32">Mon</asp:ListItem>
   <asp:ListItem Value="16">Tue</asp:ListItem>
   <asp:ListItem Value="8">Wed</asp:ListItem>
   <asp:ListItem Value="4">Thu</asp:ListItem>
   <asp:ListItem Value="2">Fri</asp:ListItem>
   <asp:ListItem Value="1">Sat</asp:ListItem>                            
</asp:CheckBoxList></td>

protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
{
   CheckBoxList cbl = (CheckBoxList)sender;

   int dec = cbl.Items.Cast<ListItem>()
      .Where(li => li.Selected)
      .Sum(li =>  int.Parse(objItem.Value));

   DailyDay = Convert.ToString(dec, 2);
}

protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
       {
            
           //checkboxlist (Days)
           int total = 0;
           foreach(ListItem objItem in CheckBoxList1.Items)
           {

                   if (objItem.Selected)
                   {
                       DailyDay += objItem.Value + "";
                       total += cint(objitem.Value);
                   } 
           } 
       }

protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
        {
             
            
            //checkboxlist (Days)
            int total = 0;
            foreach (ListItem objItem in CheckBoxList1.Items)
            {

                if (objItem.Selected)
                {
                    //DailyDay = (objItem.Value + "");
                    total += Convert.ToInt32(objItem.Value);
                    string formatint = string.Format("{0:0000000}", total);
                    DailyDay = formatint;            
                }
                
            } 
        }