public override UITableViewCell GetCell (UITableView tv)
		{
			var cell = tv.DequeueReusableCell (_cellIdentifier) as SessionInfoCell;
			if (cell == null) {
				cell = new SessionInfoCell (_cellIdentifier);
			}

			_loadDataIntoCell (cell);
			return cell;
		}
		private void _loadDataIntoCell (SessionInfoCell cell)
		{
			cell.SetSession (this.Session);
			cell.btnTitle.SetTitle (Title, UIControlState.Normal);
			cell.txtSpeaker.Text = Speaker;
			cell.txtRoom.Text = DateRoom;
			
			SetImageUrl ();
			cell.SetLocalImage (ImageUrl);
			
			
			//cell.SetImage (ImageUrl);
			cell.SetNeedsLayout ();
		}