Vineet, thank you for replying. I don't think this is the issue, because the panels I am creating, have their Id's set directly in the constructor. For example,
public EditUserScreen(){ super("workScreen"); setOutputMarkupPlaceholderTag(true); setOutputMarkupId(true); } And basically they all have the same Id. However, I don't think this has anything to do with creation of the Panels anymore. I have just tried something like: EditUserScreen screen = new EditUserScreen(); currentPanel.replaceWith(screen); currentPanel = screen; Still nothing changed. So it doesn't look to me like the wat I am creating the panel is the problem. I think there is issues with the way I am using replaceWith method. Any ideas ? On Sun Mar 27,2011 01:50 pm, vineet semwal wrote: > Foo.class.newInstance() will use zero arg constructor which is not > possible because > panel has no zero arg. constructor so basically you got the exception > at that line itself :) > > just pass the panel id in screen method and one enum which helps you > in identifying the panel type you want to create > and then create a panel instance in a normal way etc. what you want to do.. > > On Sun, Mar 27, 2011 at 12:56 PM, Mansour Al Akeel > <mansour.alak...@gmail.com> wrote: > > Martin, > > I could not find any help using this extension. May be I missed something > > somewhere. > > Let's look at a peice of code of what I am trying to do: > > > > ? ?private void setScreen(String screen) { > > ? ? ? ? ? ?try { > > ? ? ? ? ? ? ? ? ? ?Panel myPanel; > > ? ? ? ? ? ? ? ? ? ?myPanel = (Panel) > > Class.forName("com.mycompany.components."+screen).newInstance(); > > ? ? ? ? ? ? ? ? ? ?screenPanel.replaceWith(myPanel); > > ? ? ? ? ? ?} catch (InstantiationException e) { > > ? ? ? ? ? ? ? ? ? ?e.printStackTrace(); > > ? ? ? ? ? ?} catch (IllegalAccessException e) { > > ? ? ? ? ? ? ? ? ? ?e.printStackTrace(); > > ? ? ? ? ? ?} catch (ClassNotFoundException e) { > > ? ? ? ? ? ? ? ? ? ?e.printStackTrace(); > > ? ? ? ? ? ?} > > ? ?} > > > > So assuming I need to display a screen called "EditUserScreen", I need > > to load > > > > ? ?myPanel = (Panel) > > Class.forName("com.mycompany.components.EditUserScreen").newInstance(); > > > > With the above code everything works fine. But Nothing is replaced. I > > mean it executes with with no error, but the new panel is not shown. One > > more thing to mention, if I add additional components in the > > EditUserScreen Panel class, without adding them in the html, I see NO > > error generated ! Is't correct to conclude that the html template for > > EditUserScreen is never parsed, and instead the Panle.java is used ? > > Shouldn't the old panel should be removed in this case, at least? > > > > > > On Fri Mar 25,2011 03:06 pm, Mansour Al Akeel wrote: > >> Thank you Martin, > >> I had a quick look at extension. I will try a small application with it > >> soon. However my requirement are a bit more complex, as I need to load > >> Panels by string. So let's say I have a String called "EditUserScreen", > >> then I need to dynamically load this panel. I am not sure yet if the > >> wizard extension can do this, but will try it anyway. > >> If you know something else that can work for these requirements please > >> advice me. > >> > >> > >> > >> On Fri Mar 25,2011 12:37 pm, Martin Grigorov wrote: > >> > See Wizard component in wicket-extensions. > >> > You'll need custom logic to check whether the previous/next wizard step > >> > should be shown to the current user depending on its privileges. > >> > > >> > On Fri, Mar 25, 2011 at 1:57 AM, Mansour Al Akeel > >> > <mansour.alak...@gmail.com > >> > > wrote: > >> > > >> > > I do have the need to implement different screens. Each screen is a > >> > > Panel that will be displayed when requested from the screens menu. > >> > > > >> > > The screen menu should display the items depending on the functionality > >> > > the user has access to. > >> > > > >> > > Can some one point me to an article or a tutorial with similar > >> > > requirements ? > >> > > > >> > > I trully appreciate any help. > >> > > > >> > > > >> > > > >> > > > >> > > --------------------------------------------------------------------- > >> > > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > >> > > For additional commands, e-mail: users-h...@wicket.apache.org > >> > > > >> > > > >> > > >> > > >> > -- > >> > Martin Grigorov > >> > jWeekend > >> > Training, Consulting, Development > >> > http://jWeekend.com <http://jweekend.com/> > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > > For additional commands, e-mail: users-h...@wicket.apache.org > > > > > > > > -- > thank you, > > regards, > Vineet Semwal > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org