import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;


public class ComboTest {

    private static Combo combo_2;
    private static Combo combo_1;
    private static Combo combo;
    /**
     * Launch the application
     * @param args
     */
    public static void main(String[] args) {
        final Display display = Display.getDefault();
        final Shell shell = new Shell();
        shell.setSize(461, 337);
        shell.setText("SWT Application");
        //

        shell.open();

        combo = new Combo(shell, SWT.NONE);
        combo.setBounds(123, 116, 141, 20);

        final Button button = new Button(shell, SWT.NONE);
        button.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                combo.removeAll();//先 清空
                for (int i=1; i<=10;i++)
                    combo.add("第"+i+"字符串");//添加字符串
                    combo.select(0);//设置第一级为当前项
            }
        });
        button.setText("设值");
        button.setBounds(105, 189, 48, 22);

        final Button button_1 = new Button(shell, SWT.NONE);
        button_1.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                //MessageDialog.openInformation(shell,null,combo.getText());
            }
        });
        button_1.setText("取值");
        button_1.setBounds(231, 189, 48, 22);

        combo_1 = new Combo(shell, SWT.READ_ONLY);//只读
        combo_1.setBounds(313, 52, 52, 20);

        combo_2 = new Combo(shell, SWT.SIMPLE);//一直显示
        combo_2.setBounds(313, 164, 52, 20);
        shell.layout();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
    }

}