CODEWITHSUNDEEP
javaswingjtable
Damian Lesniak
Damian Lesniak

Reputation: 462

JTable cell updating issue

I got a problem I can't resolve alone and with help of other topics there. Found some 1 pretty similar but it hasn't help.

My problem is kind of tricky ones I think, I'll try to explain this as good as I can.

So, I got a JTable with couple of columns, column 2 and 3 are editable and column 4 is a product of these two (col4 = col2*col3). What I am going to do is when I edit column 2 or 3, column 4 will automaticly update it's value. I acomplished that but not fully. The cell is updating only when I finish editing by mouseclick. I'd like to cell react with same way if editing is finished by ENTER key.

I was trying a little bit with:

if(recipeTable.getCellEditor()!=null)recipeTable.getCellEditor().stopCellEditing();

but it isn't changing anything.

Here is my code:

recipeTableModel = new DefaultTableModel(COLUMN_HEADLINE, 0) {

        @Override
        public boolean isCellEditable(int row, int column) 
        {
            model.updateTotalPriceInTable(recipeTable);
            return (column == 2) || (column == 3);
        }
    };

And:

public void updateTotalPriceInTable(JTable table)
{
    double totalPrice;
    DefaultTableModel tableModel = (DefaultTableModel) table.getModel();
    for(int i = 0; i < tableModel.getRowCount(); i++)
    {
        totalPrice = Double.parseDouble(tableModel.getValueAt(i, 2).toString()) * Double.parseDouble(tableModel.getValueAt(i, 3).toString());
        tableModel.setValueAt(totalPrice, i, 4);
    }
    tableModel.fireTableDataChanged();
}

~~~~~~~~~~~~~~~~~~~~~~~~ Ok I figured it out, that is code the code that resolved my problem:

@Override
        public void setValueAt(Object aValue, int row, int column)
        {
        Vector rowVector = (Vector)dataVector.elementAt(row);
        rowVector.setElementAt(aValue, column);
        rowVector.setElementAt(Double.parseDouble((String) rowVector.get(2))*Double.parseDouble((String) rowVector.get(3)), 4);
        fireTableDataChanged();
        }

Upvotes: 0

Views: 69

Answers (1)

camickr
camickr

Reputation: 324098

Override the setValueAt(...) method of your TableModel. You invoke super.setValueAt(...) to save the data normally.

Then whenever the data in column 2 or 3 changes, you then calculate the value of column 4 and update the model.

Upvotes: 2

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