JTable isCellEditable method [Archive]

vermelh0

12-03-02, 14:33

Hi,
How can I make a column with Boolean values in a JTable Editable?
I have something like this, but it doesn't work:

data = new Object[][]{
{"1","11","A","","","",new Integer(14), new Boolean(true)},
{"2","22","","B","","",new Integer(1),new Boolean(false)}};

column = new Object[]{"fixed 1","fixed 2","a","b","c","d","e","f"};

AbstractTableModel fixedModel = new AbstractTableModel() {
public int getColumnCount() { return column.length; }
public int getRowCount() { return data.length;}
public String getColumnName(int col) {
return (String)column[col];
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
public Class getColumnClass(int col) {
if (col == 7)
return Boolean.class;
else if (col == 6)
return Integer.class;
else
return Object.class;
}
public boolean isCellEditable(int row, int col) {
if (col == 7)
return true;
else
return false;
}
}

JTable jTable1 = new JTable(fixedModel);

Thank you,
Vermelh0

vermelh0

12-03-02, 14:50

Hum, I think I found a solution through trial and error, but I don't understand it...
My solution is to create a setValueAt method inside the AbstractTableModel class like this:

public void setValueAt(Object value, int row, int col) {
data[row][col] = value;
super.setValueAt(value, row, col);
}

Now the part I don't understand is why I must create this method....
Why doesn't the data array automatically update itself with the value?
Thank you,
V