The Weird and The Wonderful

const DWORD ACCESS_NONE = 0;
const DWORD ACCESS_VIEW = 1;
const DWORD ACCESS_MODIFY = ACCESS_VIEW | 2;
const DWORD ACCESS_DELETE = ACCESS_VIEW | 4;
const DWORD ACCESS_ALL = ACCESS_VIEW | ACCESS_MODIFY | ACCESS_DELETE; 
const DWORD ACCESS_ADMIN = ACCESS_ALL;

const DWORD ACCESS_EXECUTE = 8; //Execute may not need view
const DWORD ACCESS_ALL = ACCESS_VIEW | ACCESS_MODIFY | ACCESS_DELETE | ACCESS_EXECUTE;

public interface InvitationInterface {
...
     public ArrayList sendMulipleInvitations (List listemailAddresses,String msg);
...
}

protected void Page_Load(object sender, EventArgs e)<br />
   {<br />
       string sHafta = string.Empty;<br />
       try<br />
       {<br />
           sHafta = ddlHafta.SelectedValue;<br />
       }<br />
       catch (Exception)<br />
       {<br />
           sHafta = "0";<br />
       }<br />
   }

://it checks it contains 11 char (dd/MMM/yyyy) 
if (Convert.ToInt16(chkdate.Length.ToString()) != 11) 
{ 
  //if it does not have 11 char then it will return false 
  return false; 
}