Header in JTable is not showing up.PLEASE...... IT IS URGENT

[Sandeep Ghosh]

I have create a method which returns JTable. I have inheritied AbstractTableModel and implemented some methods.
then added the JTable into Panel.JTable is showing up but with out header.I have to submit this project tommorow.
Please solve my problem.
Thanks in adv.
Sonu
class TableMap extends AbstractTableModel {
JTable list;
public TableMap(JTable l) {
list = l;
}

public void newTable(JTable l) {
list = l;
}

public String getColumnName(int col) {
return list.getColumnName(col);
}
public int getColumnCount() {
return list.getColumnCount();
}
public Class getColumnClass(int c) {
return list.getValueAt(0, c).getClass();
}
public Object getValueAt(int aRow, int aColumn) {
return list.getValueAt(aRow,aColumn);
}
public int getRowCount() {
return (list.getRowCount());
}
}
//SomeWhere in Panel
JTable result= ConnectionManager.runselectQuery(statement);
if(result!=null)
{
if (tableMap == null)
{
tableMap = new TableMap(result);
jTable = new JTable(tableMap);
add(jTable);
}
else
{
tableMap.newTable(result);
jTable.setModel(tableMap);
add(jTable);
}
repaint();
validate();

[Houssam Haitof]

Hi, to have the column names shown, you should add your table to a scrollpane.
example of code lines to add:
JScrollPane jScrollPane = new JScrollPane();
.
.
.
jScrollPane.getViewport().add(MyTable, null);

[Sandeep Ghosh]

Hi Houssam Haitof
Thanks a lot it was big help from .There is still one little problem .First time header is coming up but when I run another query then rows are changing but headers are not changing.
Please help me.
Thanks in adv
Sandeep
if (tableMap == null)
{
tableMap = new TableMap(result);
jTable = new JTable(tableMap);
jScrollPane.getViewport().add(jTable, null);
add(jScrollPane);
}
else
{
remove(jScrollPane);
tableMap.newTable(result);
jTable.setModel(tableMap);
/* jScrollPane.getViewport().add(jTable, null);*/ //if I remove comment then no table appears.
add(jScrollPane);
}
repaint();
validate();

[Houssam Haitof]

Hi, use this table model class instead of yours (of course you can add to it anything that you need):

class MyTableModel extends AbstractTableModel {
        String[] columnNames;
        Object[][] tableData;
        public MyTableModel(Object[][] o, String[] c){
                tableData = o;
                columnNames = c;
        }
        public int getColumnCount() {
            return columnNames.length;
        }
        public int getRowCount() {
            return tableData.length;
        }
        public String getColumnName(int col) {
            return columnNames[col];
        }
        public Object getValueAt(int row, int col) {
            return tableData[row][col];
        }
        public Class getColumnClass(int c) {
            return getValueAt(0, c).getClass();
        }
        public boolean isCellEditable(int row, int col) {
                return false;
        }
        public void setValueAt(Object value, int row, int col) {
        }
    }

when you have a new result create a new model:
MyTableModel model = new MyTableModel(MyDataArray, MyColumnNames);
then set your table model:
myTable.setModel(model);
and the column names should change along with the data.
N.B.: you should add your table to a scrollpane only once.
[ June 13, 2002: Message edited by: Michael Ernest ]

[Sandeep Ghosh]

Hi Houssam Haitof,
Thanks a lot. You are too good. I was looking for just that type of help. Could I have your email address or will you prefer to receive private message from this forum.
Thanks again.
Sandeep

[Houssam Haitof]

You're welcome =)
Just msg me from this forum as it will redirect it to the email adress that I'll most use.
P.S.: I'm still a newbie