Is your renderer ever even used? You make it the default renderer for cells containing String, but have you overloaded your model’s getColumnClass method so that it knows that some of the cells hold Strings? So first I’d use println statements to see if the renderer is even being called and if not, I’d override … Read more
example on java2s.com looks like as works and correctly, then for example (I harcoded JComboBoxes for quick example, and add/change for todays Swing) import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.UIManager.LookAndFeelInfo; import javax.swing.table.*; public class EachRowEditorExample extends JFrame { private static final long serialVersionUID = 1L; public EachRowEditorExample() { super(“EachRow Editor Example”); try { for … Read more
MultiSpanCellTableExample demonstrates how to merge cells by creating a custom TableUI. There seem to be a problem in this example that causes StackOverflowError, at least in Java 6. To fix this, inside AttributiveCellTableModel.setDataVector() replace: setColumnIdentifiers(columnNames); with: this.columnIdentifiers = columnNames; IE: public void setDataVector(Vector newData, Vector columnNames) { if (newData == null) throw new IllegalArgumentException( “setDataVector() … Read more
basically there are two ways move with JProgressBar by using SwingWorker and Runnable#Thread, example for SwingWorker import java.awt.*; import java.util.*; import javax.swing.*; import javax.swing.table.*; public class TableCellProgressBar { private String[] columnNames = {“String”, “ProgressBar”}; private Object[][] data = {{“dummy”, 100}}; private DefaultTableModel model = new DefaultTableModel(data, columnNames) { private static final long serialVersionUID = 1L; … Read more
The issue occurs when you change the selected item. You have some implicit interaction between your combobox and you table (the selected item of the combo box influences the way the table is painted). When the comboboxpopup is hidden, it automatically triggers a repaint of the hovered area (the RepaintManager will only repaint the hovered … Read more
only example, everything is hardcoded, for good understanding EDIT: as kleopatra’s noticed, moved JTable#fireTableDataChanged() from ActionListener to the TableModel, amended all ClassNames start with lowerCase import java.awt.*; import java.awt.event.*; import java.util.EventObject; import javax.swing.*; import javax.swing.table.*; public class ComponentTableTest { private JFrame frame; private JTable CompTable = null; private CompTableModel CompModel = null; private JButton addButton … Read more
You’ll need a custom renderer to display the green color when a cell is marked modified in your model. You’ll also need a custom editor to set the model’s modified state in your implementation of stopCellEditing(), mentioned here. A related example of a custom renderer and editor is shown here. Addendum: Here’s an example of … Read more
When your editor concludes, the table’s editingStopped() method collects the new value via getCellEditorValue() and uses it to setValueAt() in the model. The model, in turn, should fireTableCellUpdated(), which will invoke the prescribed renderer. Extending the default should be enough to handle Number formatting. In other cases, it may be convenient to use an instance … Read more