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Dialog empty with JScrollPane und JPanel

Posted: 19 May 2025, 07:14
by Anonymous
Ich versuche, den Inhalt dem Mainpanel und Mainpanel zum Mainscrollpane hinzuzufügen. Es wird jedoch ein leeres Dialog angezeigt.

Code: Select all

   `setModal(true);
setTitle("Edit item");
setDefaultCloseOperation(DISPOSE_ON_CLOSE);

JPanel mainPanel = new JPanel();
mainPanel.setPreferredSize(new Dimension(400, 700));

JScrollPane mainScrollPane = new JScrollPane();
mainScrollPane.add(mainPanel);
setLayout(new BorderLayout());
add(mainScrollPane);

mainPanel.add(new JLabel("ID: "));
mainPanel.add(txtID = new JTextField(item.getID()));
mainPanel.add(new JLabel("Description: "));
mainPanel.add(txtDescription = new JTextField(item.getDescription()));

pack();
setVisible(true);`