public void ReloadTableView(NSTableView tableView, List<string> datasource)
		{
			tableView.Delegate = new TableDelegate ();
			var listView = new DefaultDataSource { Entries = datasource };
			tableView.DataSource = listView;
			tableView.ReloadData ();
		}
		public void ReloadCertificates()
		{
			foreach(NSTableColumn column in CertificateChainTableView.TableColumns())
			{
				CertificateChainTableView.RemoveColumn (column);
			}
			CertificateChainTableView.Delegate = new TableDelegate ();
			var listView = new DefaultDataSource { Entries = _certs };
			var columnNames = new List<ColumnOptions> {
				new ColumnOptions{ Id = "Name", DisplayName = "Certificate", DisplayOrder = 1, Width = 400 }
			};
			var columns = ListViewHelper.ToNSTableColumns (columnNames);
			foreach (var column in columns) {
				CertificateChainTableView.AddColumn (column);
			}
			CertificateChainTableView.DataSource = listView;
			CertificateChainTableView.ReloadData ();
		}