jtable

问题 I have a jtable that has a edit button, when i select a row and clicked to edit button and edit fields, and click to save button, that row doesn't update, And i have to refresh my table to Change that row! My code: if (e.getSource() == editButton) { selectedRow = uTable.getSelectedRow(); if (selectedRow >= 0) { editUser(selectedRow); } else { JOptionPane.showMessageDialog(null, "Select a row"); } } public void editUser(int row) { UserInformation userInf = userModel.getSelectedMember(row);

问题 I am trying to read data from a CSV file and display it on a JTable but i have a few problems. I am a noob so please bear with me. I have looked at and incorporated example code from several sources but to no avail. The table shows but it is blank. I know i am reading the data because i can print it. I suspect there is something wrong with my ModelTable setup. Any help would be greatly appreciated. package t1data; import java.util.*; import java.awt.event.*; import javax.swing.*; import java

问题 Here is a try block which serves the purpose of filtering through table_job to find rows which match keyword. However, when the table model changes, I am struggling to obtain the correct row index. It always picks the the first row, even though the filtered result shows a row which is not first. I understand you can do something with fireTableDataChanged() , but I am not sure HOW and WHERE to do this, in the try and catch block OR in the setLabelText() method which displays the content of the

问题 I'm using a JTable in java, but it won't let me edit the cells. private final TableModel dataModel = new AbstractTableModel() { public int getColumnCount() { return 5; } public int getRowCount() { return 10; } public Object getValueAt(int row, int col) { return new Integer(row*col); } }; private final JTable table = new JTable(dataModel); 回答1: add the follwoing code public boolean isCellEditable(int row, int col) { return true; } public void setValueAt(Object value, int row, int col) {

问题 I've spent quite some time searching for this and I've only found the GroupableHeader code. I need one header over 2 columns in a 2 column JTable . How can this be done without the use of the infamous GroupableHeader , while keeping the default look and feel of the `JTableHeader? This is a graphical representations of what I have in mind: _________________________ | Table Header | |-----------------------| | | | |-----------|-----------| | | | |-----------|-----------| 回答1: This depends on

问题 I would like the cell of my JTable to be aligned horizontally with the selected panels. Here is the a SSCCE to illustrate my problem. Thanks for any help. public class TableCellAlignment { private final static int MAX = 50; private static SelectablePanel[] selectablePanels = new SelectablePanel[MAX]; private static JScrollPane slaveScrollPane = new JScrollPane(); private static JScrollPane masterScrollPane = new JScrollPane(); private static JTable slaveTable = new JTable(); /** * @param args

问题 What possible course of action could one take to find out what went wrong if the stack trace of an error (that does not take place in the main thread) does not contain any of your methods? The full trace in question: Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0 at java.util.Vector.elementAt(Unknown Source) at javax.swing.table.DefaultTableColumnModel.getColumn(Unknown Source) at javax.swing.plaf.basic.BasicTableHeaderUI.getHeaderRenderer(Unknown

问题 I'm using a JTable and adding it to a panel which uses a gridbaglayout like so: JTable qdbs = new JTable(rowData, columnNamesVector); qdbs.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS); panel.add(qdbs, c); I don't want the table to be in a scroll pane, but I do want the table to take up the entire width of the panel. How would I accomplish this? An SSCCE as requested: import javax.swing.*; import java.awt.*; public class Main{ public static void main(String[] args) { new TestFrame(); }

问题 I have used miglayout in swing applicaion.I have encounted one issue like jtable cant appear in whole frame it show only left side some area. i want to show untill at right side end of jframe edge My implemantaion code is below package test; import java.awt.EventQueue; import java.util.Arrays; import javax.swing.DefaultListModel; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JPanel;

问题 I have a JTable with two columns: a key name and the value. In the value columns are multiple data types allowed like this image: So in column 1 I might have a boolean in row 1 and a string in row 2. But the method getColumnClass(...) only allows me to set a data type for the complete column. Is there any way to set column-row specific data types? Greetings, mythbu 回答1: You cannot have two data types to the same column. But for your case, my suggestion is use rendering. Read about Editors and