Java 使用TableModelListener设置JComboBox编辑器
我想使用Java 使用TableModelListener设置JComboBox编辑器,java,swing,jtable,jcombobox,tablecelleditor,Java,Swing,Jtable,Jcombobox,Tablecelleditor,我想使用TableModelListener将我的第二列设置为JComboBox编辑器。还想根据第一列中选定的组合框更改第二列中组合框的型号。这里我实现了一个侦听器,它是listento1st列 private class TableScheduleListener implements TableModelListener { //Listening for data changes. @Override public void tableChanged(TableMo
TableModelListener
将我的第二列设置为JComboBox
编辑器。还想根据第一列中选定的组合框更改第二列中组合框的型号。这里我实现了一个侦听器,它是listento1st列
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);
}
}
}
我在想这个类如何在我的JTable中注册?
我试图在我的构造函数this.createScheduleView.tblSchedule.setCellEditor(新的TableScheduleEditor())中注册它代码>
但它表示不能转换为TableCellEditor,因为它扩展了JTable。有什么窍门吗
还希望根据第一列中选定的ComboBox更改第二列中ComboBox的型号
重写JTable
的getCellEditor(…)
方法以返回适当的编辑器
以下是一个让您开始学习的基本示例:
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();
}
});
}
}
import java.awt.*;
导入java.util.List;
导入java.util.ArrayList;
导入javax.swing.*;
导入javax.swing.event.*;
导入javax.swing.border.*;
导入javax.swing.table.*;
公共类TableComboBoxByRow扩展了JPanel
{
List editorData=new ArrayList(3);
公共表ComboxBoxByRow()
{
setLayout(新的BorderLayout());
//创建要用于每行的editorData
add(新字符串[]{“红色”、“蓝色”、“绿色”});
add(新字符串[]{“圆”、“正方形”、“三角形”});
add(新字符串[]{“Apple”、“Orange”、“Banana”});
//使用默认数据创建表
对象[][]数据=
{
{“颜色”,“红色”},
{“形状”,“正方形”},
{“水果”,“香蕉”},
{“纯”、“文本”}
};
字符串[]columnNames={“类型”,“值”};
DefaultTableModel=新的DefaultTableModel(数据、列名称);
JTable表格=新JTable(型号)
{
//确定行要使用的编辑器
公共表CellEditor getCellEditor(int行,int列)
{
int modelColumn=convertColumnIndexToModel(列);
if(modelColumn==1&&row<3)
{
JComboBox comboBox1=新的JComboBox(editorData.get(row));
返回新的DefaultCellEditor(comboBox1);
}
其他的
返回super.getCellEditor(行、列);
}
};
JScrollPane scrollPane=新的JScrollPane(表);
添加(滚动窗格);
}
私有静态void createAndShowUI()
{
JFrame frame=新JFrame(“按行排列的表格组合框”);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(新的tableComboxByRow());
框架。设置尺寸(200200);
frame.setLocationByPlatform(真);
frame.setVisible(true);
}
公共静态void main(字符串[]args)
{
invokeLater(新的Runnable()
{
公开募捐
{
createAndShowUI();
}
});
}
}
在上面的示例中,“模型”根据正在编辑的行进行更改
在您的情况下,需要修改逻辑以根据第一列中的值返回编辑器
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);
}
}
}
还希望根据第一列中选定的ComboBox更改第二列中ComboBox的型号
重写JTable
的getCellEditor(…)
方法以返回适当的编辑器
以下是一个让您开始学习的基本示例:
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();
}
});
}
}
import java.awt.*;
导入java.util.List;
导入java.util.ArrayList;
导入javax.swing.*;
导入javax.swing.event.*;
导入javax.swing.border.*;
导入javax.swing.table.*;
公共类TableComboBoxByRow扩展了JPanel
{
List editorData=new ArrayList(3);
公共表ComboxBoxByRow()
{
setLayout(新的BorderLayout());
//创建要用于每行的editorData
add(新字符串[]{“红色”、“蓝色”、“绿色”});
add(新字符串[]{“圆”、“正方形”、“三角形”});
add(新字符串[]{“Apple”、“Orange”、“Banana”});
//使用默认数据创建表
对象[][]数据=
{
{“颜色”,“红色”},
{“形状”,“正方形”},
{“水果”,“香蕉”},
{“纯”、“文本”}
};
字符串[]columnNames={“类型”,“值”};
DefaultTableModel=新的DefaultTableModel(数据、列名称);
JTable表格=新JTable(型号)
{
//确定行要使用的编辑器
公共表CellEditor getCellEditor(int行,int列)
{
int modelColumn=convertColumnIndexToModel(列);
if(modelColumn==1&&row<3)
{
JComboBox comboBox1=新的JComboBox(editorData.get(row));
返回新的DefaultCellEditor(comboBox1);
}
其他的
返回super.getCellEditor(行、列);
}
};
JScrollPane scrollPane=新的JScrollPane(表);
添加(滚动窗格);
}
私有静态void createAndShowUI()
{
JFrame frame=新JFrame(“按行排列的表格组合框”);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(新的tableComboxByRow());
框架。设置尺寸(200200);
frame.setLocationByPlatform(真);
frame.setVisible(true);
}
公共静态void main(字符串[]args)
{
invokeLater(新的Runnable()
{
公开募捐
{
createAndShowUI();
}
});
}
}
在上面的示例中,“模型”根据正在编辑的行进行更改
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。Th
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);
}
}
}