Java 将按钮添加到netbeans中Jtable中的单元格
如何在netbeans中的Jtable单元格中添加按钮???显示了一种方法。您需要添加自定义单元格渲染器,从表中重新定位一些事件,并在按钮状态更改时重新绘制单元格。它是邪恶的,令人讨厌的,但它是可以做到的。如中所示,我们将创建一个扩展Java 将按钮添加到netbeans中Jtable中的单元格,java,swing,netbeans6.7,Java,Swing,Netbeans6.7,如何在netbeans中的Jtable单元格中添加按钮???显示了一种方法。您需要添加自定义单元格渲染器,从表中重新定位一些事件,并在按钮状态更改时重新绘制单元格。它是邪恶的,令人讨厌的,但它是可以做到的。如中所示,我们将创建一个扩展JButton并实现TableCellRenderer的类 class ButtonRenderer extends JButton implements TableCellRenderer { public ButtonRenderer() { se
JButton
并实现TableCellRenderer
的类
class ButtonRenderer extends JButton implements TableCellRenderer {
public ButtonRenderer() {
setOpaque(true);
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(UIManager.getColor("Button.background"));
}
setText((value == null) ? "" : value.toString());
return this;
}
}
然后还需要为列创建一个单元格编辑器
class ButtonEditor extends DefaultCellEditor {
protected JButton button;
private String label;
private boolean isPushed;
public ButtonEditor(JCheckBox checkBox) {
super(checkBox);
button = new JButton();
button.setOpaque(true);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
fireEditingStopped();
}
});
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
if (isSelected) {
button.setForeground(table.getSelectionForeground());
button.setBackground(table.getSelectionBackground());
} else {
button.setForeground(table.getForeground());
button.setBackground(table.getBackground());
}
label = (value == null) ? "" : value.toString();
button.setText(label);
isPushed = true;
return button;
}
public Object getCellEditorValue() {
if (isPushed) {
//
//
JOptionPane.showMessageDialog(button, label + ": Ouch!");
// System.out.println(label + ": Ouch!");
}
isPushed = false;
return new String(label);
}
public boolean stopCellEditing() {
isPushed = false;
return super.stopCellEditing();
}
protected void fireEditingStopped() {
super.fireEditingStopped();
}
}
然后,我们将设置一个ButtonRender
实例作为该列的单元格渲染,并将一个ButtonEditor实例设置为单元格编辑器
\\"Button" is the column name
table.getColumn("Button").setCellRenderer(new ButtonRenderer());
table.getColumn("Button").setCellEditor(
new ButtonEditor(new JCheckBox()));
提供的链接中的具有完整的可运行示例。我尝试了这段代码,它正确地显示了按钮,但我无法单击它,它未启用或禁用,因此您知道它有什么问题吗?它看起来像是你发布的图片内部链接,但我不能点击它…提前谢谢!