这是一个TableModel,它在现有表的末尾引入了单选框复选框列。 您可以安装它像这样
CheckBoxSelectionTableModel.register(table);
你可以把它放在SimpleTableDemo一个尝试 - 它看起来像以下,并保持选定的行同步与复选框。
它仅需要现有的表型是javax.swing.table.AbstractTableModel中的一个实例 - 这将是在> 80%的情况。
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.TableModelListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
public class CheckBoxSelectionTableModel implements TableModel, ListSelectionListener {
protected final AbstractTableModel delegate;
protected int selectedRow = -1;
protected final ListSelectionModel selectionModel;
public CheckBoxSelectionTableModel(AbstractTableModel delegate, ListSelectionModel selectionModel) {
this.delegate = delegate;
this.selectionModel = selectionModel;
selectionModel.addListSelectionListener(this);
}
public static void register(JTable table) {
table.setModel(new CheckBoxSelectionTableModel((AbstractTableModel)table.getModel(), table.getSelectionModel()));
}
protected boolean isCheckBoxCloumn(int columnIndex) {
return columnIndex == getCheckBoxColumnIndex();
}
protected int getCheckBoxColumnIndex() {
return delegate.getColumnCount();
}
// --------------------- delegate methods --------------------- \\
public int getRowCount() {
return delegate.getRowCount();
}
public int getColumnCount() {
return getCheckBoxColumnIndex()+1;
}
public String getColumnName(int columnIndex) {
return isCheckBoxCloumn(columnIndex) ? "" : delegate.getColumnName(columnIndex);
}
public Class<?> getColumnClass(int columnIndex) {
return isCheckBoxCloumn(columnIndex) ? Boolean.class : delegate.getColumnClass(columnIndex);
}
public boolean isCellEditable(int rowIndex, int columnIndex) {
return isCheckBoxCloumn(columnIndex) ? true : delegate.isCellEditable(rowIndex, columnIndex);
}
public Object getValueAt(int rowIndex, int columnIndex) {
return isCheckBoxCloumn(columnIndex) ? rowIndex == selectedRow : delegate.getValueAt(rowIndex, columnIndex);
}
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
if(isCheckBoxCloumn(columnIndex)) {
int lastSelected = selectedRow;
if((Boolean) aValue){
selectedRow = rowIndex;
} else {
selectionModel.clearSelection();
selectedRow = -1;
}
if(lastSelected > -1) {
delegate.fireTableRowsUpdated(lastSelected, lastSelected);
}
delegate.fireTableRowsUpdated(rowIndex, rowIndex);
} else {
delegate.setValueAt(aValue, rowIndex, columnIndex);
}
}
public void addTableModelListener(TableModelListener l) {
delegate.addTableModelListener(l);
}
public void removeTableModelListener(TableModelListener l) {
delegate.removeTableModelListener(l);
}
// --------------------- ListSelectionListener methods --------------------- \\
@Override
public void valueChanged(final ListSelectionEvent e) {
if(e.getValueIsAdjusting()){
return;
}
int index = selectionModel.getLeadSelectionIndex();
boolean isSelected = selectionModel.isSelectedIndex(index);
setValueAt(isSelected ,index , getCheckBoxColumnIndex());
}
}
复选框被选中或不选 - 我看不到任何复选框。换句话说,你是什么_mean_? – kleopatra 2012-01-12 07:12:40
在我的jtable中有5个复选框。我可以选择5中的5个。我想一次只选择1个。 – Rounak 2012-01-12 07:21:28
感谢您的澄清 - 您可能会考虑编辑您的问题,并在其中添加其他信息 – kleopatra 2012-01-12 07:29:57