我想使用TableModelListener
将第二列设置为JComboBox
编辑器。还想根据第1列中选定的Compobox在第二列中更改Combobox的模型。在这里,我实现了一个正在收听第一列的听众。
private class TableScheduleListener implements TableModelListener
{
//Listening for data changes.
@Override
public void tableChanged(TableModelEvent e)
{
int row = e.getFirstRow();
int column = e.getColumn();
}
if(column == 1)
{
for(int i = 0; i < createScheduleView.tblSchedule.getRowCount(); i++)
{
createScheduleView.tblSchedule.getCellEditor(i, 2);
}
int col = createScheduleView.tblSchedule.convertColumnIndexToModel(2);
if(col == 2 && createScheduleView.tblSchedule.getRowCount() < 7)
{
DefaultComboBoxModel cbModel = new DefaultComboBoxModel(createScheduleModel.setData().toArray());
createScheduleView.cbBreakStartTime.setModel(cbModel);
}
}
}
,但我在考虑如何将Jcombobox设置为第二列中的编辑。设置后是模型?任何帮助都会感谢。
更新
我从https://tips4java.wordpress.com/2009/06/06/28/combo-box-table-editor/遵循Camickr提示但想从不同类覆盖TableCellEditor
。
private class TableScheduleEditor extends JTable
{
// Determine editor to be used by row
@Override
public TableCellEditor getCellEditor(int row, int column)
{
int modelColumn = convertColumnIndexToModel(column);
if(modelColumn == 2 && row < 7)
{
DefaultComboBoxModel model = new DefaultComboBoxModel(createScheduleModel.setData().toArray());
createScheduleView.getCbBreakStartTime().setModel(model);
return new DefaultCellEditor(createScheduleView.getCbBreakStartTime());
}
else
return super.getCellEditor(row, column);
};
}
我在想这堂课如何在我的JTable中注册?我试图将其注册在我的构造函数this.createScheduleView.tblSchedule.setCellEditor(new TableScheduleEditor());
中但是它说不能转换为tablecelleditor,因为它可以扩展JTable。有什么技巧吗?
也想基于第1列中选定的Combobox在第二列中更改Combobox的模型
覆盖JTable
的getCellEditor(...)
方法返回适当的编辑器。
这是让您入门的基本示例:
import java.awt.*;
import java.util.List;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import javax.swing.table.*;
public class TableComboBoxByRow extends JPanel
{
List<String[]> editorData = new ArrayList<String[]>(3);
public TableComboBoxByRow()
{
setLayout( new BorderLayout() );
// Create the editorData to be used for each row
editorData.add( new String[]{ "Red", "Blue", "Green" } );
editorData.add( new String[]{ "Circle", "Square", "Triangle" } );
editorData.add( new String[]{ "Apple", "Orange", "Banana" } );
// Create the table with default data
Object[][] data =
{
{"Color", "Red"},
{"Shape", "Square"},
{"Fruit", "Banana"},
{"Plain", "Text"}
};
String[] columnNames = {"Type","Value"};
DefaultTableModel model = new DefaultTableModel(data, columnNames);
JTable table = new JTable(model)
{
// Determine editor to be used by row
public TableCellEditor getCellEditor(int row, int column)
{
int modelColumn = convertColumnIndexToModel( column );
if (modelColumn == 1 && row < 3)
{
JComboBox<String> comboBox1 = new JComboBox<String>( editorData.get(row));
return new DefaultCellEditor( comboBox1 );
}
else
return super.getCellEditor(row, column);
}
};
JScrollPane scrollPane = new JScrollPane( table );
add( scrollPane );
}
private static void createAndShowUI()
{
JFrame frame = new JFrame("Table Combo Box by Row");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add( new TableComboBoxByRow() );
frame.setSize(200, 200);
frame.setLocationByPlatform( true );
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowUI();
}
});
}
}
在上面的示例中,"模型"根据要编辑的行更改。
在您的情况下,您需要修改逻辑以根据第一列中的值返回编辑器。