jcombobox

How to implement auto complete functionality in a cell in JTable?

由 余生颓废 提交于 2019-11-26 17:25:06
问题 My JTable has a cell editor implemented as an instance of the DefaultCellEditor(JComboBox) class. I've tried a couple of different things (Adding Auto-Completion Support to Swing Comboboxes ) but it still doesn't work. 1: // JComboBox combo = new JComboBox(new Object[] { "Ester", "Jordi", "Jordina", "Jorge", "Sergi" }); AutoCompleteDecorator.decorate(combo); DefaultCellEditor cellEditor = new DefaultCellEditor(combo); TableColumn column = myTable.getColumnModel().getColumn(2); column

JCombobox change another JCombobox

由 一世执手 提交于 2019-11-26 16:59:02
问题 I'm trying to combine 2 jcomboboxes. 1 combobox is for showing category of expences. and second combobox is reading file from text file to show types of products. If I change first combobox I would like that second combobox will change based on what user select in the first one. Is there any chance that i can still load the other combobox from text files? That subitems would not be Arrays but same as before as it is on the bottom of the code to cboperson. edited code: private JComboBox

how to add checkbox and combobox in table cell?

由 纵然是瞬间 提交于 2019-11-26 16:58:55
问题 I am creating one form which contain table and some buttons. A picture is worth a thousand words: How can I get the checkbox and comboboxes into the table? I am using NetBeans. I tried using drag and drop but didn't work. Here is my form code. public class HttpOutput extends javax.swing.JPanel { HttpElements current_Http_EleObject; /** * Creates new form HttpOutput */ public HttpOutput(HttpElements httpelements) { initComponents(); current_Http_EleObject=httpelements; TableColumn

how to trigger an action in parent JPanel when a component in a child JPanel is updated (Java Swing)

由 ﹥＞﹥吖頭↗ 提交于 2019-11-26 16:47:03
问题 I am trying to build an MVC application in Java Swing. I have a JPanel that contains four JComboBoxes and this JPanel is embedded into a parent JPanel. The parent JPanel has other controls in addition to the child JPanel. The child JPanel's model gets correctly updated whenever I change the values of the JComboBoxes (it's basically a date picker with one combo box each for year, month, day of month, and hour of day). What I cannot figure out is how I can trigger the parent JPanel's model to

How do I populate JComboBox from a text file?

由 女生的网名这么多〃 提交于 2019-11-26 14:49:06
问题 How do I populate a JComboBox from a text file? 回答1: Very vague question. Are you saying you want one entry per line? If so you want to use something like a BufferedReader, read all the lines, save them as a String array. Create a new JComboBox passing in that String constructor. BufferedReader input = new BufferedReader(new FileReader(filePath)); List<String> strings = new ArrayList<String>(); try { String line = null; while (( line = input.readLine()) != null){ strings.add(line); } } catch

Background color of the selected item in an uneditable JComboBox

由 假装没事ソ 提交于 2019-11-26 14:46:45
问题 The background color of the selected item in an uneditable JComboBox is a sort of blue: Is there any way to make this a different color, such as white, for example? 回答1: This should work jComboBox1.setRenderer(new DefaultListCellRenderer() { @Override public void paint(Graphics g) { setBackground(Color.WHITE); setForeground(Color.BLACK); super.paint(g); } }); 回答2: The background assigned by the renderer is overriden by the selection background color of the JList that is used in the popup for

Item in JComboBox instance of an object

由 不问归期 提交于 2019-11-26 14:39:51
问题 Hello I have the following code to see if an item in the JComboBox is instance of a class(Persoon). public class ItemChangeListener implements ItemListener { Persoon selectedPerson; RekeningApp app; PersoonView view; public ItemChangeListener(PersoonView view) { this.view = view; } public void itemStateChanged(ItemEvent event) { if (event.getStateChange() == ItemEvent.SELECTED) { Object item = event.getItem(); System.out.println("Itemchangelistener " + item); // do something with object if

How to set Icon to a JLabel from an image from a folder?

由 让人想犯罪 __ 提交于 2019-11-26 13:52:28
I am trying to set an icon to a JLabel from a folder of images whenever an item is selected from a JComboBox. The name of items in the JComboBox and name of the images in the folder are same. So whenever an item is selected from the JComboBox, the corresponding image with the same name should be set as an icon to the JLabel. I am trying to do something like this. private void cmb_movieselectPopupMenuWillBecomeInvisible(javax.swing.event.PopupMenuEvent evt){ updateLabel(cmb_moviename.getSelectedItem().toString()); } protected void updateLabel(String name) { ImageIcon icon = createImageIcon("C:\

How to make a JComboBox table editor have the design of an ordinary JComboBox?

由 寵の児 提交于 2019-11-26 12:31:44
问题 I have a JComboBox used as an editor in a JTable . In the picture you can see them in the column labeled Produs . I would like to use the design of the stand-alone JComboBox in the grid cells, particularly the right part of the combo box where the triangle is missing from the grid cells, so a user will know that the grid cells are combo boxes without having to click on one of them. How can I apply the design of the JComboBox ( IsBackFlush ) to the JComboBoxes in the grid? Essentially, how can

JComboBox setting label and value

由 和自甴很熟 提交于 2019-11-26 09:56:20
问题 Is it possible to set a value and a label to a JComboBox so I can show a label but get a value that is different? For example in JavaScript I can do: document.getElementById(\"myselect\").options[0].value //accesses value attribute of 1st option document.getElementById(\"myselect\").options[0].text //accesses text of 1st option 回答1: You can put any object inside of a JComboBox. By default, it uses the toString method of the object to display a label navigate in the combo box using the
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