指定事件处理

creditGrid.addSelectionListener(new SelectionListener() {

        @Override

        public void select(SelectionEvent event) {

            boolean somethingSelected = (creditGrid.getSelectedRow() != null);

          //  buySellLayout.setEnabled(somethingSelected);

            if (somethingSelected) {

                //tx .setInputPrompt("Number of stock to buy/sell");

            }

        }

    });