scusate ragazzi, io ho preso questa classe.
codice:
public class TableFilterDemo extends JPanel {
private boolean DEBUG = false;
static Visualizzazioni db;
private JTable table;
private JTextField filterText;
private JTextField statusText;
MyTableModel tableModel;
private TableRowSorter<MyTableModel> sorter;
public TableFilterDemo() {
super();
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
//Create a table with a sorter.
Vector v = db.eseguiQuery("SELECT CodiceRicetta FROM RicettaIngredienti GROUP BY CodiceRicetta");
tableModel = new MyTableModel(v);
sorter = new TableRowSorter<MyTableModel>(tableModel);
table = new JTable(tableModel);
table.setRowSorter(sorter);
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
table.setFillsViewportHeight(true);
//For the purposes of this example, better to have a single
//selection.
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
//When selection changes, provide user with row numbers for
//both view and model.
table.getSelectionModel().addListSelectionListener(
new ListSelectionListener() {
public void valueChanged(ListSelectionEvent event) {
int viewRow = table.getSelectedRow();
if (viewRow < 0) {
//Selection got filtered away.
statusText.setText("");
} else {
int modelRow =
table.convertRowIndexToModel(viewRow);
statusText.setText(
String.format("Selected Row in view: %d. " +
"Selected Row in model: %d.",
viewRow, modelRow));
}
}
}
);
//Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table);
//Add the scroll pane to this panel.
add(scrollPane);
//Create a separate form for filterText and statusText
JPanel form = new JPanel(new SpringLayout());
JLabel l1 = new JLabel("Filter Text:", SwingConstants.TRAILING);
form.add(l1);
filterText = new JTextField();
//Whenever filterText changes, invoke newFilter.
filterText.getDocument().addDocumentListener(
new DocumentListener() {
public void changedUpdate(DocumentEvent e) {
newFilter();
}
public void insertUpdate(DocumentEvent e) {
newFilter();
}
public void removeUpdate(DocumentEvent e) {
newFilter();
}
});
l1.setLabelFor(filterText);
form.add(filterText);
JLabel l2 = new JLabel("Status:", SwingConstants.TRAILING);
form.add(l2);
statusText = new JTextField();
l2.setLabelFor(statusText);
form.add(statusText);
SpringUtilities.makeCompactGrid(form, 2, 2, 6, 6, 6, 6);
add(form);
}
/**
* Update the row filter regular expression from the expression in
* the text box.
*/
private void newFilter() {
RowFilter<MyTableModel, Object> rf = null;
//If current expression doesn't parse, don't update.
try {
rf = RowFilter.regexFilter(filterText.getText(), 0);
} catch (java.util.regex.PatternSyntaxException e) {
return;
}
sorter.setRowFilter(rf);
}
class MyTableModel extends AbstractTableModel{
Vector v = null;
// intestazioni delle colonne
String[] ColName = {"Ricette Salvate"};
public MyTableModel(Vector v) {
// System.out.println("vediamo se l'errore è qui sopra");
this.v = v; // inizializzato con il vettore
// System.out.println("vediamo se l'errore è qui sotto");
}
/* public int getRowCount() {
// System.out.println("Stampo"+v.size());
return null==v?0:v.size();}*/
public int getRowCount() {
return v.size();
}
public String getColumnName(int col) {
return ColName[col];
}
public int getColumnCount() {
return ColName.length;
}
/*
* Don't need to implement this method unless your table's
* editable.
*/
public boolean isCellEditable(int row, int col)
{
// nessuna cella editabile
return false;
}
public Object getValueAt(int row, int col) {
//Object rowVal = v.get(row);
//return((Object[])rowVal)[col];//[col];
Object colonna = null;
try{
Vector riga = (Vector)v.elementAt(row);
colonna = riga.elementAt(col);
//System.out.println("stampo questo "+colonna);
return colonna;
}
catch(ArrayIndexOutOfBoundsException e){
System.out.println("errore: "+e);
}
return colonna;
}}
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
*/
public static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("Ricettario");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
TableFilterDemo newContentPane = new TableFilterDemo();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
db = new Visualizzazioni("provaDB");
try {
db.connetti();
} catch (InstantiationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalAccessException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
in pratica è la classe tablefilterdemo di java. Io ho soltato inserito nella tabella i risultati del mio database.
Ora voglio che attraverso un pulsante Carica si apra questo nuovo frame e consenta all'utente di selezionare la riga che gli interessa.
questo lo faccio in questo modo
TableFilterDemo filterdemo = new TableFilterDemo();
filterdemo.createAndShowGUI();
in questo modo io mi creo la finestra e l'utente può iniziare a ricercare la riga che gli occorre.
Poi quando ha trovato ciò che gli occorre voglio che o con un doppio click o con un pulsnte debba restituirmi il contenuto della riga cioè se clicca sulla riga 2 che contiene la scritta ciao mi deve resituire ciao.
mi potete dire come procedere?????
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