jlist

Adding JSeparator to a DefaultListModel

旧街凉风 提交于 2019-12-02 00:22:08
I want to add some JSeparators to a JList. I am using a DefaultListModel, and when I try: ((DefaultListModel)myListModel).addElement(new JSeparator()); I'm getting this written into the JList instead of the separator when I execute: javax.swing.JSeparator[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.synth.SynthBorder@962d513,flags=0,maximumSize=,minimumSize=,preferredSize=,orientation=HORIZONTAL] little bit complicated in the renderer but possible, since example for JComboBox but with ListCellRenderer import java.util.*; import java.awt.*; import java.awt.event.*;

Java Jlist text center align

a 夏天 提交于 2019-12-01 21:22:48
I have a JList on a panel. How can I center align the text in the JList ? I can't seem to find the settings anywhere for the model? I have looked for align settings on the GUI but cant seem to find any there. Hovercraft Full Of Eels This has nothing to do with the model since it involves the view, the ListCellRenderer to be specific. One solution; get the renderer and set its horizontalAlignment to SwingConstants.CENTER. Assuming that you're not using a custom cell renderer you could for example do: DefaultListCellRenderer renderer = (DefaultListCellRenderer) myJList.getCellRenderer();

Does a swing filterable JList component exist?

杀马特。学长 韩版系。学妹 提交于 2019-12-01 20:13:01
问题 For a specific screen, I'm looking for a JList that I could filter (the same way you can filter a JTable using a RowFilter ) Is there a good implementation of this kind of component anywhere here in the wild (and do you have an experience with it) or do I have to code it myself ? (it is not that long to do, but if there is any valid implementation, I would be happy to use it) 回答1: Yes, I'm sure that the SwingX components provide this. Check out JXList. You can get SwingX from here. 回答2: You

Can I set the selected item for a JList without having an event thrown to the listeners?

﹥>﹥吖頭↗ 提交于 2019-12-01 20:03:50
I am working on a viewer, which uses a JList to show thumbnails of the pages of a document. The user can open a page by selecting it through in the JList, or throught other mechanisms, like entering the number in a text box. When using the latter alternative, I want that the JList also selects the page. I do this using setSelectedIndex(), but this triggers an event, which causes the page to be loaded again, as if the user had clicked and selected the page in the JList, and this is causing me some problems. How I see it, the index should be set some way (perhaps in the model) so that only the

Does a swing filterable JList component exist?

妖精的绣舞 提交于 2019-12-01 18:08:34
For a specific screen, I'm looking for a JList that I could filter (the same way you can filter a JTable using a RowFilter ) Is there a good implementation of this kind of component anywhere here in the wild (and do you have an experience with it) or do I have to code it myself ? (it is not that long to do, but if there is any valid implementation, I would be happy to use it) Yes, I'm sure that the SwingX components provide this. Check out JXList . You can get SwingX from here . You could consider using a single column JTable instead of a JList . If you follow this approach you'll get

Convert ArrayList to DefaultListModel

浪尽此生 提交于 2019-12-01 17:26:01
问题 I'm beginner in Java. I really need to return DefaultTableModel ( javax.swing ) from array or ArrayList . It is possible? I can't insert array into DefaultTableModel (constructor). Code is below: private DefaultListModel model; public DefaultListModel getNamesAndIdToCombobox(Connection conn, boolean closeConn, String sql) throws SQLException { long counter = 0; try { Statement stmt = conn.prepareStatement(sql); ResultSet rs = stmt.executeQuery(sql); while (rs.next()) { // String longKey =

Adding an ActionListener to a JList

隐身守侯 提交于 2019-12-01 17:10:44
I have a JList with an array of strings. Basically it displays a restaurant menu. right next to the JList i have another JList which is empty. Whenever a user double clicks on a string in the first JList (where the menu is displayed) I want it to show up on the next JList which is right next to it. how do i do that? You can try final JList list = new JList(dataModel); MouseListener mouseListener = new MouseAdapter() { public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 2) { String selectedItem = (String) list.getSelectedValue(); // add selectedItem to your second list.

Java - Updating JList after changing an object

耗尽温柔 提交于 2019-12-01 16:28:41
I have a JList which uses a DefaultListModel. I then add values to the model which then appear in the JList. I have created a MouseListener which (when double clicked) allows the user to edit the current user number of that person they have selected. I have checked that the actual object of that record is being changed, and it is. The only issue I'm having is getting the actual Jlist to update to show the new values of that object. Snippets of the current code I have are: Creating the JList and DefaultTableModel: m = new DefaultListModel(); m.addListDataListener(this); jl = new JList(m); jl

JList and ArrayList update

≡放荡痞女 提交于 2019-12-01 12:37:44
I would like to have example on how to update a JList when I add or remove elements from a ArrayList. The ArrayList is part of Model class. The Model class is passed to the view (which is a JPanel containing several swing components, and the JList I want to update) via its constructor. The model class is also injected in a class that reads values received from the server. When i received data from the server I add some of them to my arrayList by doing model.getArrayList().add(data). When I add data to the arrayList i would like to update the JList in my view. I would like to have help on how

How to add two columns in a Jlist?

一笑奈何 提交于 2019-12-01 10:13:15
问题 I found a Dual JList sample code, but I need two columns in a Jlist . How to add two columns in a Jlist ? I tried to use ListCellRenderer , but I failed to add elements to the model. Here's the code show in webpage with image. 回答1: You mean something like this? I'd start by having a read through How to Use Tables The Main frame... public class DualTableFrame extends JFrame { private JTable leftTable; private JTable rightTable; private JButton addButton; private JButton removeButton; public