Solved

Get data from Dialog Window.

Posted on 1998-07-01
3
198 Views
Last Modified: 2010-03-30
Hello, I have a problem with a Dialog Window, it has a TextField and a Button in order to input a String. Till here, everything works fine, but the problem is How to send this String value to parent window ?.
Here's the code:

 import java.awt.*;


public class window3 extends java.applet.Applet {
 Frame marco;
 Button abre;
 TextArea ta;

 
   
 public void init() {
  resize(140, 100);
  ta = new TextArea(3,10);
  abre = new Button("Open window");
  ta.appendText(nuevoNom);
  add(ta);
  add(abre);
  marco = new MiMarco("Change Name Window");
  marco.resize(380,50);
  marco.hide();
 }

 public boolean action(Event evt, Object algo) {
  Object target = evt.target;
 
  if(target == abre) {
    marco.show();
   return true;
  }

  return false;
 }
 
}
 



 
 class MiMarco extends Frame {
  String nuevoNom;
  TextField newnom;
  Button cambianom;
  Label cambiarn;

  MiMarco(String title) {
   super(title);
   setLayout(new GridLayout(1,1));
   cambiarn = new Label("New name:");
   newnom = new TextField(24);
   cambianom = new Button("Accept");
   add(cambiarn);
   add(newnom);
   add(cambianom);
  }
 
  public boolean action(Event evt, Object algo) {
   Object target = evt.target;

   if(target == cambianom) {
     nuevoNom = newnom.getText();
     newnom.setText("");
     hide();
    return true;
   }
   
   return false;
  }  
 
 }


In other words, I'd like to use "nuevoNom" String value in public class window3, How do I do that?.

   Thanks a lot.
0
Comment
Question by:Deladier
  • 2
3 Comments
 
LVL 5

Accepted Solution

by:
msmolyak earned 40 total points
ID: 1224306
If I understand it correcrly, MiMacro is the dialog which accepts teh string which you want to display in an applet (Why do you extend a Frame, not a dialog then?).

Why do you instantiate MiMacro after you set the string in the applet. You should probably first create the dialog get the string and then use it in the applet.

public void init() {

      marco = new MiMarco("Change Name Window");
      marco.resize(380,50);
//      marco.hide();  you do need to call hide here, you can do it in the Dialog's action method.
     
     // make sure the dialog is modal, then the processing will not
     // continue until you hide it.

    // Now get the string (getString() is the method in MiMacro which returns the string).
      nuevoNom = macro.getString();
      resize(140, 100);
      ta = new TextArea(3,10);
      abre = new Button("Open window");
      ta.appendText(nuevoNom);
      add(ta);
      add(abre);
     }
0
 

Author Comment

by:Deladier
ID: 1224307
Sorry, I'm still learning about Frames and Dialogs. Do you know where I can get more  examples related?.

   Thanks.
0
 
LVL 5

Expert Comment

by:msmolyak
ID: 1224308
Two points:
- Frame is usually the main application window, while the Dialog is a subordinate window which always requires a frame as a parent.
- Dialog can be modal. Modal dialog when displayed (by setVisible(true)) immediately blocks the calling thread (usually that means that you cannot do anything until you close the dialog) which continues only after you close the dialog (with setVisible(false)).

I am sure Java Tutorial on Javasoft's Web (www.javasoft.com) site talks about that.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
groovy example issue 10 89
JUnit 4 @Before and @BeforeClass differences 3 48
eclipse argument 14 53
javap not working 8 36
For customizing the look of your lightweight component and making it look lucid like it was made of glass. Or: how to make your component more Apple-ish ;) This tip assumes your component to be of rectangular shape and completely opaque. (COD…
An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
This video teaches viewers about errors in exception handling.
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now