in connessione con filo Jtable as a Jtree Node ho messo JTable a Jtree, ma JTree
View non è reso correttamente su START_UP, come posso setPreferredSize
per JTable
, perché PreferredScrollableViewportSize
rimpiccioliti JTable
del rendering TableHeader
+ uno , uno rimanere nascosto, ma dopo l'espansione del nodo (s) cambio TreeRenderer e riverniciare la setPreferredSize
per l'atteso Dimension
Mettere JTable nel JTree
import java.awt.*;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.tree.*;
public class TreeWithTableRenderer extends JFrame {
private static final long serialVersionUID = 1L;
private JTree tree;
public TreeWithTableRenderer() {
DefaultMutableTreeNode AA1 = new DefaultMutableTreeNode("AA1");
DefaultMutableTreeNode AA2 = new DefaultMutableTreeNode("AA2");
DefaultMutableTreeNode A = new DefaultMutableTreeNode("A");
A.add(AA1);
A.add(AA2);
DefaultMutableTreeNode BB1 = new DefaultMutableTreeNode("BB1");
DefaultMutableTreeNode BB2 = new DefaultMutableTreeNode("BB2");
DefaultMutableTreeNode B = new DefaultMutableTreeNode("B");
B.add(BB1);
B.add(BB2);
DefaultMutableTreeNode CC1 = new DefaultMutableTreeNode("CC1");
DefaultMutableTreeNode CC2 = new DefaultMutableTreeNode("CC2");
DefaultMutableTreeNode C = new DefaultMutableTreeNode("C");
C.add(CC1);
C.add(CC2);
DefaultMutableTreeNode root = new DefaultMutableTreeNode("root");
root.add(A);
root.add(B);
root.add(C);
tree = new JTree(root);
tree.setCellRenderer(new MyTableInTreeCellRenderer());
tree.setRowHeight(0);
JScrollPane jsp = new JScrollPane(tree);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
add(jsp, BorderLayout.CENTER);
pack();
setLocationRelativeTo(null);
}
class MyTableInTreeCellRenderer extends JPanel implements TreeCellRenderer {
private static final long serialVersionUID = 1L;
private JTable table;
public MyTableInTreeCellRenderer() {
super(new BorderLayout());
table = new JTable();
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane);
}
public Component getTreeCellRendererComponent(JTree tree, Object value,
boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) {
final String v = (String) ((DefaultMutableTreeNode) value).getUserObject();
table.setModel(new DefaultTableModel() {
private static final long serialVersionUID = 1L;
@Override
public int getRowCount() {
return 2;
}
@Override
public int getColumnCount() {
return 2;
}
@Override
public Object getValueAt(int row, int column) {
return v + ":" + row + ":" + column;
}
});
table.setPreferredScrollableViewportSize(table.getPreferredSize());
return this;
}
}
public static void main(String[] args) throws Exception {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new TreeWithTableRenderer().setVisible(true);
}
});
}
}
non avevo bisogno di JScrollPane per impostazione predefinita, hmmm rimuovi JScrollPane, penso che questo sia un suggerimento sbagliato, perché questo JTable può avere una stessa riga come 5T Rows, non importa ho dimenticato per http://stackoverflow.com/questions/7369814/why-does-the-jtable-header-not-appear-in-the-image, grazie – mKorbel