Re: JTable question

On Sep 29, 10:30 am, Sriram <sxb4...@gmail.com> wrote:


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Here is the following code in my main class T1Panel.java . I am having
a problem on clicking the add Rows button by which I am not seeing the
rows getting added in the Jtable. Can anyone help me here??

In main class T1Panel.java this method addRows was created and called
from the actionEvent method of button class in the same program....
                private void addRows(){
             Container aContainer=this.t1Frame.getContentPaneContainer();
     Object[][] data = { {1, "", "",""," "} };
        String[] columnNames =
{"RowNo","Code","Description","Value3","Value4"};
        DefaultTableModel model = new DefaultTableModel(data,columnNames);
        T1FieldSetTableModel fsModel=new T1FieldSetTableModel();
        JTable table = new JTable(fsModel);
        fsModel.addRow(fsModel.createRow());
        int row = table.getRowCount() - 1;
        table.getColumnModel().getColumn(4).setCellEditor(new
DefaultCellEditor(comboBox));
             table.changeSelection(row, 0, false, false);
        table.requestFocusInWindow();

        table.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
        table.getColumnModel().getColumn(4).setCellEditor(new
DefaultCellEditor(comboBox));
        // Add table and a Button panel to the frame
        JScrollPane scrollPane = new JScrollPane( table );
        scrollPane.setBounds(100, 100, 500, 150);
        aContainer.add(scrollPane);
        int maxPanelXPixels = this.panelStats.getMax_X_bounds_pixels();
        this.t1Frame.setColumnsWide( (maxPanelXPixels /
IEFrame.COL_WIDTH_PER_CHAR)+3);
        this.t1Frame.display();
        }

In class T1FieldSetTableModel.java
               package com.deere.u90234.t1source.t1core.swing;

import javax.swing.event.TableModelListener;
import javax.swing.table.*;
import javax.swing.event.TableModelEvent;
import java.util.*;

public class T1FieldSetTableModel implements TableModel{
     String[] columnNames =
{"RowNo","Code","Description","Value3","Value4"};
      private ArrayList<TableModelListener> listeners = new
ArrayList<TableModelListener>();
      ArrayList<Object[]> data = new ArrayList<Object[]>();
    public void addTableModelListener(TableModelListener l) {
        // TODO Auto-generated method stub
        if (listeners .contains(l))
            return;
        listeners.add(l);
    }

    public Class<?> getColumnClass(int columnIndex) {
        // TODO Auto-generated method stub
        switch (columnIndex)
        {
        case 0:
             return Boolean.class;
        case 1:
             return String.class;
        case 2:
             return String.class;
        }
        return null;
    }

    /* (non-Javadoc)
     * @see javax.swing.table.TableModel#getColumnCount()
     */
    public int getColumnCount() {
      return 5;
    }

    public String getColumnName(int columnIndex) {
        // TODO Auto-generated method stub
        return columnNames[columnIndex];
    }

    public int getRowCount() {
        // TODO Auto-generated method stub
        return data.size();
    }

    public Object getValueAt(int rowIndex, int columnIndex) {
        // TODO Auto-generated method stub
        return data.get(rowIndex)[columnIndex];
    }

    public boolean isCellEditable(int rowIndex, int columnIndex) {
        // TODO Auto-generated method stub
        if (columnIndex == 1)
            return false;

        return true;

    }

    public void removeTableModelListener(TableModelListener l) {
        // TODO Auto-generated method stub
           listeners.remove(l);
    }

    public void setValueAt(Object aValue, int rowIndex, int columnIndex)
{
        // TODO Auto-generated method stub
         data.get(rowIndex)[columnIndex] = aValue;
            TableModelEvent myValue = new TableModelEvent(this, rowIndex,
                    rowIndex, columnIndex, TableModelEvent.UPDATE);
            for (TableModelListener l: listeners)
                l.tableChanged(myValue);
    }
    public Object[] createRow()
    {
        Object[] newRow=new Object[100];
  int row= getRowCount()+1;
  newRow[0]=Integer.toString(row);
  return newRow;
    }
        public void addRow(Object o)
    {
       o=createRow();
    }

  }

I am not sure what wrong am I doing here and why the rows aren't being
generated?... can someone help me here? point out the mistake in my
code??I have hit a brickwall on this problem