java - 从 JTable 中添加和删除

Question

我有一个带有自定义模型和自定义 CellEditor 和 CellRenderer 的 JTable，我想删除和添加此表中的数据。

我该怎么做？

我的模型:

public class frandtabmodule extends AbstractTableModel {
  Vector list;

  public frandtabmodule(Vector frand_list ) {
    this.list = frand_list;
  }


    @Override
  public Class getColumnClass(int columnIndex) { return Frand.class; }
    @Override
    public int getColumnCount() { return 1; }
    @Override
    public String getColumnName(int columnIndex) { return " "; }
    @Override
    public int getRowCount() { return (list == null) ? 0 : list.size(); }
    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {
        int i =0 ;
        System.out.println(" raw"+rowIndex+"   clumn"+columnIndex
                +"/n -------------------------------------------"+i++);
     return (list == null) ? null : list.get(rowIndex);


    }




    @Override
    public boolean isCellEditable(int columnIndex, int rowIndex) { return true; }


    @Override
    public void fireTableRowsDeleted(int firstRow, int lastRow) {

        this.list.remove(firstRow);
        this.fireTableDataChanged();
    }
}

我的 CellEditor 和 CellRenderer:

public class renderediter extends AbstractCellEditor implements TableCellEditor, TableCellRenderer {
  //Clientdef1 clientdef ;


  Frand list;

  public renderediter(){
   //clientdef = new Clientdef1();
  }

  /*private void updateData(Frand feed, boolean isSelected, JTable table) {
    this.feed = feed;

    clientdef.setconncted(feed.iscon);
    clientdef.name.setText(feed.name);
    if (isSelected) {
      clientdef.setBackground(table.getSelectionBackground());
    }else{
      clientdef.setBackground(table.getSelectionForeground());
    }
  }*/

    @Override
  public Component getTableCellEditorComponent(JTable table, Object value,
      boolean isSelected, int row, int column) {
   Frand frad = (Frand)value;

   System.err.println("-------------------------\n f1 called\n ------------------");
    //updateData(feed, true, table);

     frad.def.setBackground(table.getSelectionBackground());

    return frad.def;
  }

    @Override
  public Object getCellEditorValue() {
    return null;
  }

    @Override
  public Component getTableCellRendererComponent(JTable table, Object value,
      boolean isSelected, boolean hasFocus, int row, int column) {
    Frand frad = (Frand)value;
   // updateData(feed, isSelected, table);
     if (isSelected) {
      frad.def.setBackground(table.getSelectionBackground());
    }
     else{
      frad.def.setBackground(Color.white);
    }
    return frad.def;
  }
}

表创建:

contact_tab = new javax.swing.JTable();
this.module = new frandtabmodule(client.frands);
contact_tab.setModel(module);
contact_tab.setDefaultEditor(Frand.class, new renderediter());
contact_tab.setDefaultRenderer(Frand.class, new renderediter());
contact_tab.setRowHeight(45);
jsp_contact.add(contact_tab);
jsp_contact.repaint();
jsp_contact.revalidate();
contact_tab.setColumnSelectionAllowed(true);

我尝试过的:

添加: client.frands.add(new Frand ());

删除: client.frands.remove( frand);

如果我从表格中选择单元格，但我想动态工作，这是有效的。

Answer 1

不要重写 AbstractTableModel 中的 fireTableRowsDeleted() 或相关方法。相反，请实现您自己的方法来 addRow()、removeRow() 等。使用 DefaultTableModel作为指导；检查相关示例 here .