tablecellrenderer

问题 I am trying to create a LWUIT Table in my J2ME application where all cells in one column are of a particular type e.g. TextField taking decimal input. Could anyone please suggest of achieving this or even another approach I could take? 回答1: I was looking in the wrong area. Instead of using ListCellRenderer I extended the Table object and overrode the createCell method. public class CustomTable extends Table{ public CustomTable(TableModel model) { super(model); } protected Component createCell

问题 In my Java 7 application I use a Swing JTable with two columns. The left column uses a DefaultTableCellRenderer where the setHorizontalAlignment() is set to centered, whereas the right column uses no specific renderer. That right column shows each table row in alternating colors by default, which is not the case on the left column with the renderer used. Moreover, when I hover with the mouse over the rows on the right column, then the row under the mouse curser is highlighted when focused,

问题 i am getting only last row coloured.. class CustomTableCellRenderer extends DefaultTableCellRenderer { private Map<Integer, Color> mapColors; public CustomTableCellRenderer() { mapColors = new HashMap<>(); } public void setRowColor(int row, Color color) { // System.out.println(row + "...happy...." + color); mapColors.put(row, color); } @Override public Component getTableCellRendererComponent(JTable table, Object obj, boolean isSelected, boolean hasFocus, int row, int column) { Component cell

问题 I have created one Jtable.This table consist of two columns name and timestamp. I want to make color of row yellow if name is "jane". Following is the code for that :- class CustomRenderer extends DefaultTableCellRenderer { public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); String name = table.getModel()

问题 I have a JTable where I display some string data formatted using html. I need to show a tool tip based on the text under the mouse pointer On mouse over "Line1" and "Line2" I need to show different tool tips. Is there any way to achieve this or do I have to use a custom renderer to render each line with a cell and show tool tip based on that ? Here's the sample code to create the table package com.sample.table; import java.awt.*; import java.awt.event.MouseEvent; import java.awt.event

问题 For putting a JSlider into a JTable I wrote am AbstractCellEditor which implements a TableCellRenderer and a TableCellEditor . It gets initialized with values from 0 to 100. I have the strange behaviour that when I first click onta a slider it jumps to the maximum. The second weird behaviour: I've added a ChangeListener . This Listener gets only called if I first click into the slider. A second click (which also changes the value) doesn't cause this event. Why? public class SliderTableColumn

问题 I'm using NimbusLookAndFeel. With this look and feel JTable's cell background are alternatively white and light grey (it depends on the row number). Now, I'm writing some custom cell renderer implementing TableCellRenderer. I need to set the background of these renderers according to the position of the cell in the JTable. public class MyCellRenderer extends JLabel implements TableCellRenderer{ @Override public Component getTableCellRendererComponent(JTable table, Object value, boolean

问题 I want the ability to highlight some rows of JTable , depending on the values in the row itself. For example, if the existing qty < reorder level , that row should be highlighted in the JTable . I know there is a table method tblItems.setSelectionBackground(Color.yellow); that works when the rows are selected, but is there a similar method that doesn't rely on the rows being selected to have them show in a different color? public class MyTableCellRenderer implements TableCellRenderer {

问题 I'm somewhat new to Java and I'm having problems with JTable with sort and TableCellRenderer . I have a table with 15 columns populated with values where on some columns I use the TableCellRenderer to change the color of foreground to green or red acording the values on the cell. Everything is working perfectly until I try to sort by some column (the sorting part is ok)... The problem is that the formating colors don't reflect the change made by the sort operation. The colors stay unchanged

问题 I asked this question about a problem I was seing with a cell renderer using the Nimbus look and feel and the issue has turned out to be possibly to do with Scala. Basically I have a cell renderer which extends Panel (as opposed to DefaultTableCellRenderer ) and it is behaving oddly: it is not rendering the alternate row colors properly whereas an equivalent Java program behaves just fine. If anyone is interested, here is some Scala code to run: import com.sun.java.swing.plaf.nimbus