how to displaying different panels on action event
jos xavier
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Joined: Feb 02, 2001
Posts: 14
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Hi, My problem is that I am creating an applet which should be able to change panels. E.g. i have an add, delete, edit and view buttons. Each button should change the panel. I am using border layout and I want to change the panels for each button... Can anyone tell me how to do it...
Matthew Gaunt
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Joined: Mar 12, 2001
Posts: 12
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Do you mean change that each button changes a certain region of the border layout (ie-North South East West Center). It is a little difficult to understand what section of the panel is supposed to change when you press the buttons. And where are the buttons positioned? Best Regards Matt
jos xavier
Greenhorn
Joined: Feb 02, 2001
Posts: 14
posted
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Thanks Matt for your reply... My applet is as follows : import java.applet.*; import java.awt.*; import java.awt.event.*;
public class Cust extends Applet implements ActionListener{ Label Msg= new Label(""); TextField tf = new TextField("hi",10); Panel PanMain,pNorth,pCenter; BorderLayout blMain; Button bAdd,bEdit,bDel,bView,EditChk,AddChk;
public void init() { PanMain = new Panel(); blMain = new BorderLayout(); PanMain.setLayout(blMain); String PanMainCol= "#17518b"; add(PanMain); pNorth = new Panel(); PanMain.add(pNorth,blMain.NORTH); pNorth.setBackground(new Color("#fccffc".hashCode())); bAdd = new Button("ADD"); bEdit = new Button("EDIT"); bDel = new Button("DELETE"); bView = new Button("VIEW"); pNorth.add(bAdd); pNorth.add(bEdit); pNorth.add(bDel); pNorth.add(bView); pNorth.add(tf); bAdd.addActionListener(this); bEdit.addActionListener(this); bDel.addActionListener(this); bView.addActionListener(this); tf.addActionListener(this); addPanel("789789789"); }
public void actionPerformed (ActionEvent ae) { if (ae.getSource()==bAdd) { tf.setText("Adding Records"); pCenter.removeAll(); addPanel("567567567"); pCenter.validate(); }
if (ae.getSource()==bEdit) { tf.setText("Editing Records"); pCenter.removeAll(); addPanel("123123123"); pCenter.validate(); } }
public void addPanel(String ColorVal) { pCenter= new Panel(); PanMain.add(pCenter,blMain.SOUTH); pCenter.setBackground(new Color(ColorVal.hashCode())); pCenter.add(new Button(ColorVal)); } }
Originally posted by Matthew Gaunt: Do you mean change that each button changes a certain region of the border layout (ie-North South East West Center). It is a little difficult to understand what section of the panel is supposed to change when you press the buttons. And where are the buttons positioned? Best Regards Matt
[This message has been edited by Stephanie Grasson (edited March 13, 2001).] [This message has been edited by Stephanie Grasson (edited March 13, 2001).]
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