[英]How to add jtable inside of jscrollpane?
我知道,如何在Scrollpane中添加表格。 但是我已經在那兒引入了一個循環,這正在造成問題,所以請幫助我擺脫這個問題(我想在滾動窗格中添加表)似乎只要我不引入滾動窗格但只要將表放在其中就可以正常工作滾動窗格,它不起作用。 請幫忙。
提前致謝。
這是我的代碼:
import javax.swing.DefaultCellEditor;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JFrame;
import java.awt.*;
import javax.swing.*;
public class Simple
{
JScrollPane mainScroll;
JPanel panel;
JFrame frame;
public Simple()
{
frame=new JFrame();
panel=new JPanel();
mainScroll=new JScrollPane();
Object[][] rowData = {};
Object[] columnNames = { "Sr.No","Subject","Department","Status" };
JComboBox mainBox=new JComboBox();
mainBox.addItem("Processed");
mainBox.addItem("Pending");
DefaultTableModel listTableModel;
listTableModel = new DefaultTableModel(rowData, columnNames);
for (int i = 0; i < 1000; i++) {
String main = "" + i;
listTableModel.addRow(new Object[] { main, "", "" ,"Choose"});
JTable listTable;
listTable = new JTable(listTableModel);
TableColumn StatusColumn=listTable.getColumnModel().getColumn(3);
StatusColumn.setCellEditor(new DefaultCellEditor(mainBox));
mainScroll.add(listTable);
}
panel.setLayout(null);
mainScroll.setBounds(37, 143, 397, 183);
// mainBox.addItem("Processing");
frame.add(panel);
panel.add(mainScroll);
frame.setSize(600,600);
frame.setVisible(true);
}
public static void main(String arg[])
{
new Simple();
}
}
代替
mainScroll=new JScrollPane();
...
mainScroll.add(listTable);
您需要在循環后執行此操作
mainScroll = new JScrollPane(listTable);
附錄1:
您還需要將JTable的創建拉出循環。 在循環內部,僅向表中添加行。
解決方案的核心是這樣的:
JTable listTable = new JTable(listTableModel);
for (int i = 0; i < 1000; i++) {
// add rows to the table
}
mainScroll = new JScrollPane(listTable);
附錄2(我需要標識符)
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;
import java.awt.*;
import javax.swing.*;
public class Simple {
JScrollPane mainScroll;
JPanel panel;
JFrame frame;
public Simple() {
frame=new JFrame();
panel=new JPanel();
Object[][] rowData = {};
Object[] columnNames = { "Sr.No","Subject","Department","Status" };
JComboBox mainBox=new JComboBox();
mainBox.addItem("Processed");
mainBox.addItem("Pending");
DefaultTableModel listTableModel;
listTableModel = new DefaultTableModel(rowData, columnNames);
JTable listTable = new JTable(listTableModel);
for (int i = 0; i < 1000; i++) {
String main = "" + i;
listTableModel.addRow(new Object[] { main, "", "" ,"Choose"});
TableColumn StatusColumn=listTable.getColumnModel().getColumn(3);
StatusColumn.setCellEditor(new DefaultCellEditor(mainBox));
}
mainScroll = new JScrollPane(listTable);
panel.setLayout(null);
mainScroll.setBounds(37, 143, 397, 183);
frame.add(panel);
panel.add(mainScroll);
frame.setSize(600,600);
frame.setVisible(true);
}
public static void main(String arg[]) {
new Simple();
}
}
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