jTable cannot find symbol method delRow(int)

[Albert Robert]

DefaultTableModel jTable1_d_t_model = (DefaultTableModel) jTable1.getModel();
line 2 error jTable1_d_t_model.delRow(row);

cannot find symbol
symbol: method delRow(int)
location: variable jTable1_d_t_model of type javax.swing.table.DefaultTableModel

see all my java method

but not delRow(int)


customise code for jTable1 in NetBeans

jTable1 = new javax.swing.JTable();

jTable1.setBackground(new java.awt.Color(102, 153, 0));

jTable1.setModel(new javax.swing.table.DefaultTableModel(
    tablica_danych, naglowki_tabeli) {
    boolean[] canEdit = new boolean [] {
        false, false, false, true, true, true, false, false, false, false
    };
    int column = getColumnCount();
    public boolean isCellEditable(int rowIndex, int columnIndex) {
        return canEdit [columnIndex];
    }

    public void setValueAt(Object value, int row, int col) {
        tablica_danych[row][col] = value;
        fireTableCellUpdated(row, col);
    }

    public String getColumnName(int col) {
        return naglowki_tabeli[col].toString();
    }

    /*public void delRow(int row) throws IndexOutOfBoundsException {
        if(tablica_danych.length == 0) return;
        Object[][] nowa_tablica_danych=new Object[tablica_danych.length-1][column];
        for(int i=0; i<row; i++)
        for(int j=0; j<column; j++)
        nowa_tablica_danych[i][j]=tablica_danych[i][j];

        for(int i=row+1; i<tablica_danych.length; i++)
        for(int j=0; j<column; j++)
        nowa_tablica_danych[i-1][j]=tablica_danych[i][j];
        tablica_danych=nowa_tablica_danych;
        fireTableDataChanged();
    }*/

    public void delRow(int selectedRow){
    }
    public void addRow(Object[] row) {
        int column = getColumnCount();
        //if(row.length!=getColumnCount()) throw new Exception("Niewłaściwe dane");
        Object[][] nowa_tablica_danych = new Object[tablica_danych.length+1][column];
        for(int i=0; i<tablica_danych.length; i++)
        for(int j=0; j<column; j++)
        nowa_tablica_danych[i][j]=tablica_danych[i][j];
        for(int i=0; i<column; i++)
        nowa_tablica_danych[tablica_danych.length][i] = row[i];
        tablica_danych=nowa_tablica_danych;

        fireTableDataChanged();
    }

    public int getRowCount() { return tablica_danych.length; }
    public int getColumnCount() { return naglowki_tabeli.length; }
    public Object getValueAt(int row, int col) {
        return tablica_danych[row][col];
    }

});

jScrollPane1.setViewportView(jTable1);



private javax.swing.JTable jTable1;


private Object [][] tablica_danych = new Object [][] {};
private String[] naglowki_tabeli = new String [] {definicja naglowków tebeli};

[Matthew Brown]

You're trying to call delRow() on a reference of type DefaultTableModel. But that doesn't exist in DefaultTableModel, it only exists in the anonymous class you've created.

You be able to use your method, you need to:
- Change from an anonymous class to a named one
- Cast the model to your model type, rather than DefaultTableModel

[Rob Camick]

Why are you even doing this? DefaultTableModel already supports addRow(...) and removeRow(...) methods. There is no need to override all those methods.

If for some reason you do need a custom TableModel, then you should be extending AbstractTableModel.

[Paul Clapham]

Matthew Brown wrote:You're trying to call delRow() on a reference of type DefaultTableModel. But that doesn't exist in DefaultTableModel, it only exists in the anonymous class you've created.

You be able to use your method, you need to:
- Change from an anonymous class to a named one
- Cast the model to your model type, rather than DefaultTableModel

Or simply override the removeRow(int) which DefaultTableModel already provides.

(That covers the Java programming aspect of the answer; however the practical aspect is covered by Rob Camick's answer.)

[Albert Robert]

thanks a lot

Robert

Paul Clapham wrote:

Matthew Brown wrote:You're trying to call delRow() on a reference of type DefaultTableModel. But that doesn't exist in DefaultTableModel, it only exists in the anonymous class you've created.

You be able to use your method, you need to:
- Change from an anonymous class to a named one
- Cast the model to your model type, rather than DefaultTableModel

Or simply override the removeRow(int) which DefaultTableModel already provides.

(That covers the Java programming aspect of the answer; however the practical aspect is covered by Rob Camick's answer.)