tocEditor.setText( expressionBuilder.getResult( ).trim( ) );
			public void widgetSelected( SelectionEvent event )			{				ExpressionBuilder expressionBuilder = new ExpressionBuilder( getKeyExpression( ) );				expressionBuilder.setExpressionProvier( new ExpressionProvider( inputGroup ) );				if ( expressionBuilder.open( ) == OK )				{					setKeyExpression( expressionBuilder.getResult( ).trim( ) );				}			}