Java Tutorial/Swing/Table Selection

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Allow multiple selections of rows, visible columns, or cell blocks (default)

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
 }

}</source>





Allow only single a selection

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
 }

}</source>





Allow selection to span one contiguous set of rows, visible columns, or block of cells

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
 }

}</source>





Check each cell in the min and max ranges of selected cells

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   if (table.getCellSelectionEnabled()) {
     // In the other modes, the set of selected cells can be retrieved using
     table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
     table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
     // Get the min and max ranges of selected cells
     int rowIndexStart = table.getSelectedRow();
     int rowIndexEnd = table.getSelectionModel().getMaxSelectionIndex();
     int colIndexStart = table.getSelectedColumn();
     int colIndexEnd = table.getColumnModel().getSelectionModel().getMaxSelectionIndex();
     // Check each cell in the range
     for (int r = rowIndexStart; r <= rowIndexEnd; r++) {
       for (int c = colIndexStart; c <= colIndexEnd; c++) {
         if (table.isCellSelected(r, c)) {
           System.out.println("cell is selected"); 
         }
       }
     }
   }
 }

}</source>





Deselect a cell: cell (3,2), All cells in the row and column containing (re deselected.

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   int rows = 10;
   int cols = 5;
   JTable table = new JTable(rows, cols);
   table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
   table.setColumnSelectionAllowed(true);
   table.setRowSelectionAllowed(true);
   int row = 3;
   int col = 2;
   boolean toggle = true;
   boolean extend = false;
   table.changeSelection(row, col, toggle, extend);
 }

}</source>





Disabling Selections in a JTable Component

   <source lang="java">

import javax.swing.JTable; public class Main { 

 public static void main(String[] argv) throws Exception {
   int rows = 10;
   int cols = 5;
   JTable table = new JTable(rows, cols);
   table.setFocusable(false);
   table.setCellSelectionEnabled(false);
 }

}</source>





Extend the selection to include all cells (5,3)

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   int rows = 10;
   int cols = 5;
   JTable table = new JTable(rows, cols);
   table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
   table.setColumnSelectionAllowed(true);
   table.setRowSelectionAllowed(true);
   int row = 5;
   int col = 3;
   boolean toggle = false;
   boolean extend = true;
   table.changeSelection(row, col, toggle, extend);
 }

}</source>





Get default selection mode:MULTIPLE_INTERVAL_SELECTION

   <source lang="java">

import javax.swing.JTable; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   int selMode = table.getSelectionModel().getSelectionMode();
 }

}</source>





Get selected row and selected index

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   if (table.getCellSelectionEnabled()) {
     table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
     int rowIndex = table.getSelectedRow();
     int colIndex = table.getSelectedColumn();
   }
 }

}</source>





Get the min and max ranges of selected cells

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   if (table.getCellSelectionEnabled()) {
     table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
     table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
     int rowIndexStart = table.getSelectedRow();
     int rowIndexEnd = table.getSelectionModel().getMaxSelectionIndex();
     int colIndexStart = table.getSelectedColumn();
     int colIndexEnd = table.getColumnModel().getSelectionModel().getMaxSelectionIndex();
   }
 }

}</source>





Getting the Anchor Cell in a JTable Component

   <source lang="java">

import javax.swing.JTable; public class Main { 

 public static void main(String[] argv) throws Exception {
   int rows = 10;
   int cols = 5;
   JTable table = new JTable(rows, cols);
   int rowIndex = table.getSelectionModel().getAnchorSelectionIndex();
   int vColIndex = table.getColumnModel().getSelectionModel().getAnchorSelectionIndex();
 }

}</source>





Handle selection and model change events for a JTable.

   <source lang="java">

import java.awt.Dimension; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import javax.swing.event.TableModelEvent; import javax.swing.event.TableModelListener; import javax.swing.table.TableModel; public class Main implements ListSelectionListener { 

 String[] headings = { "Name", "Customer ID", "Order #", "Status" };
 Object[][] data = { { "A", new Integer(3), "0", new Date() },
     { "B", new Integer(6), "4", new Date() }, { "C", new Integer(9), "9", new Date() },
     { "D", new Integer(7), "1", new Date() }, { "E", new Integer(4), "1", new Date() },
     { "F", new Integer(8), "2", new Date() }, { "G", new Integer(6), "1", new Date() } };
 JTable jtabOrders = new JTable(data, headings);
 TableModel tm;
 Main() {
   JFrame jfrm = new JFrame("JTable Event Demo");
   jfrm.setSize(400, 200);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   
   jtabOrders.setPreferredScrollableViewportSize(new Dimension(420, 62));
   ListSelectionModel rowSelMod = jtabOrders.getSelectionModel();
   ListSelectionModel colSelMod = jtabOrders.getColumnModel().getSelectionModel();
   rowSelMod.addListSelectionListener(this);
   colSelMod.addListSelectionListener(this);
   tm = jtabOrders.getModel();
   tm.addTableModelListener(new TableModelListener() {
     public void tableChanged(TableModelEvent tme) {
       if (tme.getType() == TableModelEvent.UPDATE) {
         System.out.println("Cell " + tme.getFirstRow() + ", " + tme.getColumn() + " changed."
             + " The new value: " + tm.getValueAt(tme.getFirstRow(), tme.getColumn()));
       }
     }
   });
   jfrm.add(new JScrollPane(jtabOrders));
   jfrm.setVisible(true);
 }
 public void valueChanged(ListSelectionEvent le) {
   String str = "Selected Row(s): ";
   int[] rows = jtabOrders.getSelectedRows();
   for (int i = 0; i < rows.length; i++)
     str += rows[i] + " ";
   str += "Selected Column(s): ";
   int[] cols = jtabOrders.getSelectedColumns();
   for (int i = 0; i < cols.length; i++)
     str += cols[i] + " ";
   str += "Selected Cell: " + jtabOrders.getSelectedRow() + ", "
       + jtabOrders.getSelectedColumn();
   System.out.println(str);
 }
 public static void main(String args[]) {
   new Main();
 }

}</source>





JTable.setCellSelectionEnabled(boolean b);

   <source lang="java">

import java.awt.Dimension; import java.awt.FlowLayout; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 String[] headings = { "Name", "Customer ID","Order #", "Status" };
 Object[][] data = {
   { "A", new Integer(3), "0", new Date() },
   { "B", new Integer(6), "4", new Date() },
   { "C", new Integer(9), "9", new Date() },
   { "D", new Integer(7), "1", new Date() },
   { "E", new Integer(4), "1", new Date() },
   { "F", new Integer(8), "2", new Date() },
   { "G", new Integer(6), "1", new Date() }
 };
 JTable jtabOrders = new JTable(data, headings);
 Main() {
   JFrame jfrm = new JFrame("JTable Demo");
   jfrm.setLayout(new FlowLayout());
   jfrm.setSize(460, 180);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JScrollPane jscrlp = new JScrollPane(jtabOrders);
   jtabOrders.setPreferredScrollableViewportSize(new Dimension(420, 60));
   jtabOrders.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   jtabOrders.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
   jfrm.setVisible(true);
 
   jtabOrders.setCellSelectionEnabled(true);
 }
 public static void main(String args[]) {
    new Main();
 }

}</source>





JTable.setColumnSelectionAllowed(boolean b);

   <source lang="java">

import java.awt.Dimension; import java.awt.FlowLayout; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 String[] headings = { "Name", "Customer ID",
                       "Order #", "Status" };
 Object[][] data = {
   { "A", new Integer(3), "0", new Date() },
   { "B", new Integer(6), "4", new Date() },
   { "C", new Integer(9), "9", new Date() },
   { "D", new Integer(7), "1", new Date() },
   { "E", new Integer(4), "1", new Date() },
   { "F", new Integer(8), "2", new Date() },
   { "G", new Integer(6), "1", new Date() }
 };
 JTable jtabOrders = new JTable(data, headings);
 Main() {
   JFrame jfrm = new JFrame("JTable Demo");
   jfrm.setLayout(new FlowLayout());
   jfrm.setSize(460, 180);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JScrollPane jscrlp = new JScrollPane(jtabOrders);
   jtabOrders.setPreferredScrollableViewportSize(
               new Dimension(420, 60));
   jtabOrders.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   jfrm.setVisible(true);
 
   jtabOrders.setColumnSelectionAllowed(false);
   jtabOrders.setRowSelectionAllowed(true);
 }
 public static void main(String args[]) {
    new Main();
 }

}</source>





JTable.setRowSelectionAllowed(boolean b);

   <source lang="java">

import java.awt.Dimension; import java.awt.FlowLayout; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 String[] headings = { "Name", "Customer ID","Order #", "Status" };
 Object[][] data = {
   { "A", new Integer(3), "0", new Date() },
   { "B", new Integer(6), "4", new Date() },
   { "C", new Integer(9), "9", new Date() },
   { "D", new Integer(7), "1", new Date() },
   { "E", new Integer(4), "1", new Date() },
   { "F", new Integer(8), "2", new Date() },
   { "G", new Integer(6), "1", new Date() }
 };
 JTable jtabOrders = new JTable(data, headings);
 Main() {
   JFrame jfrm = new JFrame("JTable Demo");
   jfrm.setLayout(new FlowLayout());
   jfrm.setSize(460, 180);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JScrollPane jscrlp = new JScrollPane(jtabOrders);
   jtabOrders.setPreferredScrollableViewportSize(
               new Dimension(420, 60));
   jtabOrders.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   jfrm.setVisible(true);
 
   jtabOrders.setColumnSelectionAllowed(false);
   jtabOrders.setRowSelectionAllowed(true);
 }
 public static void main(String args[]) {
    new Main();
 }

}</source>





JTable.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

   <source lang="java">

import java.awt.Dimension; import java.awt.FlowLayout; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 String[] headings = { "Name", "Customer ID", "Order #", "Status" };
 Object[][] data = {
   { "A", new Integer(3), "0", new Date() },
   { "B", new Integer(6), "4", new Date() },
   { "C", new Integer(9), "9", new Date() },
   { "D", new Integer(7), "1", new Date() },
   { "E", new Integer(4), "1", new Date() },
   { "F", new Integer(8), "2", new Date() },
   { "G", new Integer(6), "1", new Date() }
 };
 JTable jtabOrders = new JTable(data, headings);
 Main() {
   JFrame jfrm = new JFrame("JTable Demo");
   jfrm.setLayout(new FlowLayout());
   jfrm.setSize(460, 180);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JScrollPane jscrlp = new JScrollPane(jtabOrders);
   jtabOrders.setPreferredScrollableViewportSize(new Dimension(420, 60));
   jtabOrders.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   jfrm.setVisible(true);
 
   jtabOrders.setColumnSelectionAllowed(false);
   jtabOrders.setRowSelectionAllowed(true);
 }
 public static void main(String args[]) {
    new Main();
 }

}</source>





JTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

   <source lang="java">

import java.awt.Dimension; import java.awt.FlowLayout; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 String[] headings = { "Name", "Customer ID","Order #", "Status" };
 Object[][] data = {
   { "A", new Integer(3), "0", new Date() },
   { "B", new Integer(6), "4", new Date() },
   { "C", new Integer(9), "9", new Date() },
   { "D", new Integer(7), "1", new Date() },
   { "E", new Integer(4), "1", new Date() },
   { "F", new Integer(8), "2", new Date() },
   { "G", new Integer(6), "1", new Date() }
 };
 JTable jtabOrders = new JTable(data, headings);
 Main() {
   JFrame jfrm = new JFrame("JTable Demo");
   jfrm.setLayout(new FlowLayout());
   jfrm.setSize(460, 180);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JScrollPane jscrlp = new JScrollPane(jtabOrders);
   jtabOrders.setPreferredScrollableViewportSize(new Dimension(420, 60));
   jtabOrders.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
   jfrm.setVisible(true);
 
   jtabOrders.setColumnSelectionAllowed(false);
   jtabOrders.setRowSelectionAllowed(true);
 }
 public static void main(String args[]) {
    new Main();
 }

}</source>





ListSelectionModel colSelMod = JTable.getColumnModel().getSelectionModel();

   <source lang="java">

import java.awt.Dimension; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import javax.swing.event.TableModelEvent; import javax.swing.event.TableModelListener; import javax.swing.table.TableModel; public class Main implements ListSelectionListener { 

 String[] headings = { "Name", "Customer ID", "Order #", "Status" };
 Object[][] data = { { "A", new Integer(3), "0", new Date() },
     { "B", new Integer(6), "4", new Date() }, { "C", new Integer(9), "9", new Date() },
     { "D", new Integer(7), "1", new Date() }, { "E", new Integer(4), "1", new Date() },
     { "F", new Integer(8), "2", new Date() }, { "G", new Integer(6), "1", new Date() } };
 JTable jtabOrders = new JTable(data, headings);
 TableModel tm;
 Main() {
   JFrame jfrm = new JFrame("JTable Event Demo");
   jfrm.setSize(400, 200);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   
   jtabOrders.setPreferredScrollableViewportSize(new Dimension(420, 62));
   ListSelectionModel rowSelMod = jtabOrders.getSelectionModel();
   ListSelectionModel colSelMod = jtabOrders.getColumnModel().getSelectionModel();
   rowSelMod.addListSelectionListener(this);
   colSelMod.addListSelectionListener(this);
   tm = jtabOrders.getModel();
   tm.addTableModelListener(new TableModelListener() {
     public void tableChanged(TableModelEvent tme) {
       if (tme.getType() == TableModelEvent.UPDATE) {
         System.out.println("Cell " + tme.getFirstRow() + ", " + tme.getColumn() + " changed."
             + " The new value: " + tm.getValueAt(tme.getFirstRow(), tme.getColumn()));
       }
     }
   });
   jfrm.add(new JScrollPane(jtabOrders));
   jfrm.setVisible(true);
 }
 public void valueChanged(ListSelectionEvent le) {
   String str = "Selected Row(s): ";
   int[] rows = jtabOrders.getSelectedRows();
   for (int i = 0; i < rows.length; i++)
     str += rows[i] + " ";
   str += "Selected Column(s): ";
   int[] cols = jtabOrders.getSelectedColumns();
   for (int i = 0; i < cols.length; i++)
     str += cols[i] + " ";
   str += "Selected Cell: " + jtabOrders.getSelectedRow() + ", "
       + jtabOrders.getSelectedColumn();
   System.out.println(str);
 }
 public static void main(String args[]) {
   new Main();
 }

}</source>





ListSelectionModel rowSelMod = JTable.getSelectionModel();

   <source lang="java">

import java.awt.Dimension; import java.util.Date; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.ListSelectionModel; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import javax.swing.event.TableModelEvent; import javax.swing.event.TableModelListener; import javax.swing.table.TableModel; public class Main implements ListSelectionListener { 

 String[] headings = { "Name", "Customer ID", "Order #", "Status" };
 Object[][] data = { { "A", new Integer(3), "0", new Date() },
     { "B", new Integer(6), "4", new Date() }, { "C", new Integer(9), "9", new Date() },
     { "D", new Integer(7), "1", new Date() }, { "E", new Integer(4), "1", new Date() },
     { "F", new Integer(8), "2", new Date() }, { "G", new Integer(6), "1", new Date() } };
 JTable jtabOrders = new JTable(data, headings);
 TableModel tm;
 Main() {
   JFrame jfrm = new JFrame("JTable Event Demo");
   jfrm.setSize(400, 200);
   jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   
   jtabOrders.setPreferredScrollableViewportSize(new Dimension(420, 62));
   ListSelectionModel rowSelMod = jtabOrders.getSelectionModel();
   ListSelectionModel colSelMod = jtabOrders.getColumnModel().getSelectionModel();
   rowSelMod.addListSelectionListener(this);
   colSelMod.addListSelectionListener(this);
   tm = jtabOrders.getModel();
   tm.addTableModelListener(new TableModelListener() {
     public void tableChanged(TableModelEvent tme) {
       if (tme.getType() == TableModelEvent.UPDATE) {
         System.out.println("Cell " + tme.getFirstRow() + ", " + tme.getColumn() + " changed."
             + " The new value: " + tm.getValueAt(tme.getFirstRow(), tme.getColumn()));
       }
     }
   });
   jfrm.add(new JScrollPane(jtabOrders));
   jfrm.setVisible(true);
 }
 public void valueChanged(ListSelectionEvent le) {
   String str = "Selected Row(s): ";
   int[] rows = jtabOrders.getSelectedRows();
   for (int i = 0; i < rows.length; i++)
     str += rows[i] + " ";
   str += "Selected Column(s): ";
   int[] cols = jtabOrders.getSelectedColumns();
   for (int i = 0; i < cols.length; i++)
     str += cols[i] + " ";
   str += "Selected Cell: " + jtabOrders.getSelectedRow() + ", "
       + jtabOrders.getSelectedColumn();
   System.out.println(str);
 }
 public static void main(String args[]) {
   new Main();
 }

}</source>





Row selection is enabled, Get the indices of the selected rows

   <source lang="java">

import javax.swing.JTable; public class Main { 

 public static void main(String[] argv) throws Exception {
   JTable table = new JTable();
   if (!table.getColumnSelectionAllowed() && table.getRowSelectionAllowed()) {
     // 
     int[] rowIndices = table.getSelectedRows();
   }
 }

}</source>





Toggles the selection state, if it were called again, it exactly reverses the first call.

   <source lang="java">

import javax.swing.JTable; import javax.swing.ListSelectionModel; public class Main { 

 public static void main(String[] argv) throws Exception {
   int rows = 10;
   int cols = 5;
   JTable table = new JTable(rows, cols);
   table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
   table.setColumnSelectionAllowed(true);
   table.setRowSelectionAllowed(true);
   boolean toggle = true;
   boolean extend = false;
   table.changeSelection(1, 3, toggle, extend);
 }

}</source>


Источник — «http://jexp.ru/index.php?title=Java_Tutorial/Swing/Table_Selection&oldid=3884»