带jtable的miglayout问题 [英] miglayout with jtable with issue
问题描述
我在swing应用程序中使用了miglayout.我遇到了一个问题，例如jtable无法出现在整个帧中，它仅显示某些区域的左侧. 我想在jframe边缘的右侧端显示直到
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
我的实现代码如下
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;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.table.DefaultTableModel;
import net.miginfocom.swing.MigLayout;
public class ProductPanel2 extends JPanel {
private JLabel lblProd;
private JButton butAdd;
private JButton butRemove;
private JButton butEdit;
private JScrollPane scroll;
private JTable table;
private static final long serialVersionUID = 1L;
public JList<String> lst_Options;
private JScrollPane scr_Data;
private JComboBox<ComboItem> cmb_Suppliers;
//Generar de inmediato
private JButton btn_NewUpdate;
private JButton btn_Delete;
private JButton btn_Copy;
private JTable tbl_Settings;
private JLabel lbl_SelectedOption;
DefaultListModel<String> modeloOpciones;
public ProductPanel2() {
initComponents();
}
private void initComponents() {
lblProd = new JLabel("Product List: ");
btn_NewUpdate = new JButton("Add");
btn_Delete = new JButton("Remove");
lbl_SelectedOption = new JLabel("Tipo de datos");
JLabel lbl_Opciones = new JLabel("Opciones");
lst_Options = new JList<String>();
modeloOpciones = new DefaultListModel<String>();
btn_Delete = new JButton("Eliminar");
btn_NewUpdate = new JButton("Nuevo");
scr_Data = new JScrollPane();
cmb_Suppliers = new JComboBox<ComboItem>();
modeloOpciones.addElement("Proveedores");
modeloOpciones.addElement("Productos");
modeloOpciones.addElement("Partidas");
lst_Options.setModel(modeloOpciones);
tbl_Settings = createTable();
tbl_Settings.setFillsViewportHeight(true);
scr_Data = new JScrollPane(tbl_Settings);
JPanel filterPanel=new JPanel();
setLayout(new MigLayout("debug", "[96px][][94.00][grow][149.00px][2px][161px]", "[16px][240px,grow][12px][29px]"));
//add(lbl_SelectedOption, "cell 1 0,alignx left,sgx");
add(lst_Options, "cell 0 1 1 5,grow");
filterPanel.add(scr_Data,"wrap, sg buttons");
// filterPanel.add(cmb_Suppliers, "");
add(filterPanel,"span 2 3, grow, wrap");
scr_Data.setViewportView(tbl_Settings);
lbl_Opciones.setHorizontalAlignment(SwingConstants.CENTER);
add(lbl_Opciones, "cell 0 0,growx,aligny top");
add(btn_Delete, "cell 6 3,alignx right,aligny bottom");
add(btn_NewUpdate, "cell 4 3,alignx right,aligny bottom");
refreshCombo(cmb_Suppliers);
}
private void refreshCombo(JComboBox<ComboItem> combo) {
combo.removeAllItems();
try {
combo.addItem(new ComboItem("0","ashjish"));
combo.addItem(new ComboItem("2","ashjish"));
combo.addItem(new ComboItem("3","ashjish"));
} catch (Exception e) {
//log.logToFile("refreshCombo: " + e.getClass().getName() + ": " + e.getMessage(), 1);
e.printStackTrace();
}
}
private JTable createTable() {
String[] columnNames = "Name 1,Name 2,Name 3,Name 4,Name 5".split(",");
int rows = 30;
int cols = columnNames.length;
String[][] data = new String[rows][cols];
for(int i=0; i<rows; i++) {
for(int j=0; j<cols; j++) {
data[i][j] = "R"+i+" C"+j;
}
}
JTable table = new JTable(data, columnNames);
return table;
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new JFrame();
ProductPanel2 pane = new ProductPanel2();
frame.setContentPane(pane);
frame.setSize(1000,1000);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
}
推荐答案
您应该重新考虑如何使用MigLayout！请考虑阅读快速入门指南: http://www.miglayout.com/QuickStart.pdf
You should re-think, how you are using the MigLayout! Please consider reading the quickstart guide: http://www.miglayout.com/QuickStart.pdf
另外，您的变量命名还需要一些工作，目前还不清楚，哪个变量代表什么.
Also your variable naming needs some work, it is very unclear, which variable is for what.
为了解决您的问题，请执行以下操作:
In order to solve your problem, do this:
tbl_Settings = createTable();
tbl_Settings.setFillsViewportHeight(true);
scr_Data = new JScrollPane(tbl_Settings);
// I have created a new Dimension-object. Those dimensions are FIXED! You might want to put a new dimension in, that is relative to the window size.
scr_Data.setPreferredSize(new Dimension(800, 800));
JPanel filterPanel=new JPanel();
更改此行(您将在其中设置行和列的绝对宽度和高度！):
Change this line (where you are setting absolute widths and heights for rows and columns!):
setLayout(new MigLayout("debug", "[96px][][94.00][grow][149.00px][2px][161px]", "[16px][240px,grow][12px][29px]"));
对此:
setLayout(new MigLayout());
删除所有添加的单元格，因为您已将它们与不是单元格的其他布局部分混合:
Remove all the cells you have added, because you have mixed them with other layout-parts, that are not cells:
add(lst_Options, "grow");
filterPanel.add(scr_Data,"wrap");
// filterPanel.add(cmb_Suppliers, "");
add(filterPanel,"width 100%, growx, push, span, wrap");
scr_Data.setViewportView(tbl_Settings);
lbl_Opciones.setHorizontalAlignment(SwingConstants.CENTER);
add(lbl_Opciones, "growx,aligny top");
add(btn_Delete, "alignx right,aligny bottom");
add(btn_NewUpdate, "alignx right,aligny bottom");
看起来像这样:
PS:我不知道这会起作用:
PS: I did not know that this would work:
String[] columnNames = "Name 1,Name 2,Name 3,Name 4,Name 5".split(",");
通常的方法是:
String[] columnNames = {"Name 1","Name 2","Name 3","Name 4","Name 5"};
我学到了一些东西！
我了解到，split()通过使用正则表达式起作用，因此您必须小心如何使用它！
I've learned, that split() works by using regular expression, so you have to be careful, how to use it!
这将返回一个空字段，而不是"aaa"和"bbb":
This will return an empty field and NOT "aaa" and "bbb":
"aaa.bbb".split(".");
更新:
我已经更新了答案，这是initComponents()方法中的代码.我再次敦促您阅读有关MigLayout的更多信息，并停止将像add(lst_Options, "cell 0 1,grow");这样的单元组件与非单元组件混合.这是混乱且难以理解/修复的.我在答案中删除了这些单元格，并为按钮添加了对齐方式.现在一切都按预期进行.
I have updated my answer, this is the code in the initComponents()-method. I again urge you to read more about the MigLayout and stop mixing cell-components like this add(lst_Options, "cell 0 1,grow"); with non-cell components. This is messy and hard to understand / fix. I removed those cells in my answer and added alignments for the buttons. Now everything works as expected.
private void initComponents() {
lblProd = new JLabel("Product List: ");
btn_NewUpdate = new JButton("Add");
btn_Delete = new JButton("Remove");
lbl_SelectedOption = new JLabel("Tipo de datos");
JLabel lbl_Opciones = new JLabel("Opciones");
lst_Options = new JList<String>();
modeloOpciones = new DefaultListModel<String>();
btn_Delete = new JButton("Eliminar");
btn_NewUpdate = new JButton("Nuevo");
scr_Data = new JScrollPane();
cmb_Suppliers = new JComboBox<String>();
modeloOpciones.addElement("Proveedores");
modeloOpciones.addElement("Productos");
modeloOpciones.addElement("Partidas");
lst_Options.setModel(modeloOpciones);
tbl_Settings = createTable();
tbl_Settings.setFillsViewportHeight(true);
scr_Data = new JScrollPane(tbl_Settings);
tbl_Settings.setPreferredScrollableViewportSize(tbl_Settings.getPreferredSize());
setLayout(new MigLayout("","[right]"));
add(lbl_Opciones, "growx,aligny, top, wrap");
add(lst_Options, "grow");
add(scr_Data, "width 100%, growx, push, span, wrap");
scr_Data.setViewportView(tbl_Settings);
lbl_Opciones.setHorizontalAlignment(SwingConstants.CENTER);
btn_Delete.setHorizontalAlignment(SwingConstants.RIGHT);
btn_NewUpdate.setHorizontalAlignment(SwingConstants.RIGHT);
add(btn_Delete, "bottom, span 2");
add(btn_NewUpdate, "bottom");
refreshCombo(cmb_Suppliers);
}
看起来像这样:
这篇关于带jtable的miglayout问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
