在插入行时动态增加jtable的高度

Question

I am having a problem on adjusting the height of a jtable whenever I insert rows. I have tried using setsize() and setPreferredScrollableViewportsize() for both table and scrollpane of the table. Could it be a problem in layout manager?

I also tried increasing the size of jpanel too upon inserting each row. BTW, the table lies in a panel and that panel lies in a jDialog . I am using free design in NetBeans for UI building.

Answer 1

Try the following... But make sure you editable option is false!

DefaultTableModel model = (DefaultTableModel)table.getModel();
        table.setModel(model);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        final TableColumnModel colModel = table.getColumnModel();
        for(int column=0; column<table.getColumnCount();column++){
            int width = 15;
            for(int row=0; row<table.getRowCount();row++){
                TableCellRenderer render = table.getCellRenderer(row, column);
                Component component = table.prepareRenderer(render, row, column);
                width = Math.max(component.getPreferredSize().width+1, width);
            }
            if(width>300){
                width = 300;
                colModel.getColumn(column).setPreferredWidth(width);
            }
        }