How to operate data in JTable ?

于 2010-06-19 15:40:00 发布 · 66 阅读

本文介绍如何使用Java Swing中的JTable组件进行数据操作，包括新增记录、删除选中记录等常见功能实现。通过示例代码展示了如何判断记录是否被选中，并提供具体的新增和删除操作方法。

How to operate data in JTable

public boolean isRecordSelected() { return masterTable.getSelectedRow() != -1; }

@Action public void newRecord() { desktopapplicationdbtest.Car c = new desktopapplicationdbtest.Car(); entityManager.persist(c); list.add(c); int row = list.size()-1; masterTable.setRowSelectionInterval(row, row); masterTable.scrollRectToVisible(masterTable.getCellRect(row, 0, true)); setSaveNeeded(true); }

@Action(enabledProperty = "recordSelected") public void deleteRecord() { int[] selected = masterTable.getSelectedRows(); List<desktopapplicationdbtest.Car> toRemove = new ArrayList<desktopapplicationdbtest.Car>(selected.length); for (int idx=0; idx<selected.length; idx++) { desktopapplicationdbtest.Car c = list.get(masterTable.convertRowIndexToModel(selected[idx])); toRemove.add(c); entityManager.remove(c); } list.removeAll(toRemove); setSaveNeeded(true); }