tabledatasetframe.java

jbuilder2006一书的所有源代码

package dataexpress;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.dx.dataset.*;
import com.borland.dbswing.*;

public class TableDataSetFrame extends JFrame implements ActionListener {
  JPanel contentPane;
  BorderLayout borderLayout1 = new BorderLayout();
  TextDataFile textDataFile1 = new TextDataFile();
  TableDataSet tableDataSet1 = new TableDataSet();
  TableScrollPane tableScrollPane1 = new TableScrollPane();
  JdbTable jdbTable1 = new JdbTable();
  JPanel jPanel1 = new JPanel();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JButton jButton4 = new JButton();

  public TableDataSetFrame() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("TableDataSet示例");
    //与bookcategory.txt文本文件建立连接，默认路径是程序的运行路径
    textDataFile1.setFileName("bookcategory.txt");
    //与文本文件的数据源建立连系
    tableDataSet1.setDataFile(textDataFile1);
    //设置表格的数据源
    jdbTable1.setDataSet(tableDataSet1);
    jButton1.setText("第一条");
    jButton2.setText("上一条");
    jButton3.setText("下一条");
    jButton4.setText("最后一条");
    jButton1.setActionCommand("first");
    jButton2.setActionCommand("prior");
    jButton3.setActionCommand("next");
    jButton4.setActionCommand("last");
    jButton1.addActionListener(this);
    jButton2.addActionListener(this);
    jButton3.addActionListener(this);
    jButton4.addActionListener(this);
    jPanel1.add(jButton1, null);
    jPanel1.add(jButton2, null);
    jPanel1.add(jButton3, null);
    jPanel1.add(jButton4, null);
    tableScrollPane1.getViewport().add(jdbTable1, null);
    contentPane.add(tableScrollPane1, BorderLayout.CENTER);
    contentPane.add(jPanel1, BorderLayout.SOUTH);

  }

  protected void processWindowEvent(WindowEvent e) {
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
  public void actionPerformed(ActionEvent e) {
    String actionComm = e.getActionCommand();
    if (actionComm.equals("first")) {
      //将指针移到数据集的第一条
      tableDataSet1.first();
    }
    if (actionComm.equals("prior")) {
      //将指针上移一条
      tableDataSet1.prior();
    }
    if (actionComm.equals("next")) {
      //将指针下移一条
      tableDataSet1.next();
    }
    if (actionComm.equals("last")) {
      //将指针移到数据集的最后一条
      tableDataSet1.last();
    }
  }
}