public List<Comment> ViewCommentHiringById(int tid)
 {
     List<Comment> cList = new List<Comment>();
     DataTable tbl = facade.ViewCommentHiringById(tid);
     foreach (DataRow r in tbl.Rows)
     {
         Comment c = new Comment(r[0].ToString(), r[1].ToString(), r[2].ToString(), r[3].ToString(), r[4].ToString(), r[5].ToString(),r[6].ToString(),r[7].ToString(),r[8].ToString());
         cList.Add(c);
     }
     if (cList != null)
     {
         return cList;
     }
     else
     {
         return null;
     }
 }
 public Comment GetRecentComment(int tid)
 {
     DataRow r = facade.GetRecentComment(tid);
     if (r != null)
     {
         Comment c = new Comment(r[0].ToString(), r[1].ToString(), r[2].ToString(), r[3].ToString(), r[4].ToString(), r[5].ToString(), r[6].ToString(), r[7].ToString());
         return c;
     }
     else
     {
         return null;
     }
 }