Canvas problem while adding forms

Question

I use Netbeans Visual Midlets. I use keypressed class and I added buttons at my Canvas class succesfully. But I am not able to add stringfields or images at canvas class. If I insert images,stringfields and choicefields at getform() class then I can not use this class if I use canvas class. I should implement new images,stringfields and choicefields() at my canvas class or I can use the methods of getform() at canvas class. If I use getform() class then I can't use methods of canvas. I hope I could tell you what I meant. To make it easier, you can see my codes below :
public Form getForm1() {
if (form1 == null) {
// write pre-init user code here
Displayable d2=new ShowMapCanvas2();
Display.getDisplay(this).setCurrent(d2);
form1 = new Form("form1", new Item[] { getStringItem() });
form1.addCommand(getCancelCommand());
form1.setCommandListener(this);
// write post-init user code here
smc2.keyPressed(keyCode);
public class ShowMapCanvas2 extends Canvas {
public ShowMapCanvas2() {
public Command getCancelCommand() {
if (cancelCommand == null) {
// write pre-init user code here
cancelCommand = new Command("Cancel", Command.CANCEL, 0);
// write post-init user code here
return cancelCommand;
//</
protected void paint(Graphics g) {
setCommandListener(new CommandListener() {
public void commandAction(Command command, Displayable d) {
System.out.println("canvas icindeyim");
if (command == cancelCommand) {
// write pre-action user code here
switchDisplayable(null, getForm());
protected void keyPressed(int keyCode){
System.out.println("icerde");
if(getGameAction(keyCode)==Canvas.FIRE) {
System.out.println("icerdeyim");
repaint();
}

Answer 1

You are saying that when adding images, strings or choice fields to the form works but when you try ti add items like that to a canvas doesn't?
Canvas and Form classes inherit Displayable. You cannot add an images, strings or choice field like you add them to a form simply because canvas class doesn't have a append method. For this you need to use a graphics object and draw the image,string or what ever your self.
Regards,
David.