Java Tutorial/Swing/Table Selection

Содержание

1 Allow multiple selections of rows, visible columns, or cell blocks (default)
2 Allow only single a selection
3 Allow selection to span one contiguous set of rows, visible columns, or block of cells
4 Check each cell in the min and max ranges of selected cells
5 Deselect a cell: cell (3,2), All cells in the row and column containing (re deselected.
6 Disabling Selections in a JTable Component
7 Extend the selection to include all cells (5,3)
8 Get default selection mode:MULTIPLE_INTERVAL_SELECTION
9 Get selected row and selected index
10 Get the min and max ranges of selected cells
11 Getting the Anchor Cell in a JTable Component
12 Handle selection and model change events for a JTable.
13 JTable.setCellSelectionEnabled(boolean b);
14 JTable.setColumnSelectionAllowed(boolean b);
15 JTable.setRowSelectionAllowed(boolean b);
16 JTable.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
17 JTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
18 ListSelectionModel colSelMod = JTable.getColumnModel().getSelectionModel();
19 ListSelectionModel rowSelMod = JTable.getSelectionModel();
20 Row selection is enabled, Get the indices of the selected rows
21 Toggles the selection state, if it were called again, it exactly reverses the first call.

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

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);
  }
}

Allow only single a selection

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);
  }
}

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

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);
  }
}

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

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"); 
          }
        }
      }
    }
  }
}

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

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);
  }
}

Disabling Selections in a JTable Component

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);
  }
}

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

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);
  }
}

Get default selection mode:MULTIPLE_INTERVAL_SELECTION

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

Get selected row and selected index

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();
    }
  }
}

Get the min and max ranges of selected cells

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();
    }
  }
}

Getting the Anchor Cell in a JTable Component

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();
  }
}

Handle selection and model change events for a JTable.

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();
  }
}

JTable.setCellSelectionEnabled(boolean b);

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();
  }
}

JTable.setColumnSelectionAllowed(boolean b);

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();
  }
}

JTable.setRowSelectionAllowed(boolean b);

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();
  }
}

JTable.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

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();
  }
}

JTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

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();
  }
}

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

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();
  }
}

ListSelectionModel rowSelMod = JTable.getSelectionModel();

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();
  }
}

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

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();
    }
  }
}

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

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);
  }
}

Java Tutorial/Swing/Table Selection

Содержание

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

Allow only single a selection

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

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

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

Disabling Selections in a JTable Component

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

Get default selection mode:MULTIPLE_INTERVAL_SELECTION

Get selected row and selected index

Get the min and max ranges of selected cells

Getting the Anchor Cell in a JTable Component

Handle selection and model change events for a JTable.

JTable.setCellSelectionEnabled(boolean b);

JTable.setColumnSelectionAllowed(boolean b);

JTable.setRowSelectionAllowed(boolean b);

JTable.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

JTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

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

ListSelectionModel rowSelMod = JTable.getSelectionModel();

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

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

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