Re: RadioChoice - what's wrong?
Do you use Eclipse? There is a compiler warning that you can turn on (it should be on by default) that warns against this problem whenever you may inadvertently be hiding other variables. I suggest to everyone I teach that they turn it on (and perhaps even turn it up from warning to error), and of course, stop ignoring the little yellow squiggly lines :) On Sun, Oct 10, 2010 at 12:47 PM, Zeldor pgronkiew...@gmail.com wrote: It does! Thanks a lot! I knew it was something stupid and trivial. Huh, but it should not cause that still - I was defining TextFields in same way and then again to add parameters and it went fine. On Sun, Oct 10, 2010 at 7:11 PM, Andrea Del Bene [via Apache Wicket] ml-node+2970427-965616561-152...@n4.nabble.comml-node%2b2970427-965616561-152...@n4.nabble.com ml-node%2b2970427-965616561-152...@n4.nabble.comml-node%252b2970427-965616561-152...@n4.nabble.com wrote: Hello Zeldor, I've red your code and it seems that you define variable rc two times: the first time as form private field and the second time just below between braces. When onSubmit method calls rc.getModelObject() it uses private field rc which was not initialized and so triggers a NullPointerException. Try to remove the second type definition RadioChoiceString and it should work. -- Jeremy Thomerson http://www.wickettraining.com
Re: RadioChoice - what's wrong?
So maybe someone could just show me working RadioChoice code with OnSubmit part? Just how to properly display it and grab data from it :) That should solve the problem, as I would compare and see what I'm doing wrong. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2970217.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: RadioChoice - what's wrong?
Hello Zeldor,
I've red your code and it seems that you define variable rc two times:
the first time as form private field and the second time just below
between braces. When onSubmit method calls rc.getModelObject() it uses
private field rc which was not initialized and so triggers a
NullPointerException. Try to remove the second type definition
RadioChoiceString and it should work.
public class Registration extends WebPage {
public Registration() {
add(new FeedbackPanel(errorMsg));
//New user registration form
FormString regForm = new
FormString(registrationForm,new ModelString()) {
static final ListString NUMBERS =
Arrays.asList(new String[] { 1, 2, 3 });
private RadioChoiceString rc;
{
RadioChoiceString rc = new
RadioChoiceString(numberRadioChoice, new
ModelString(),NUMBERS).setSuffix();
add(rc.setRequired(true));
}
@Override
public void onSubmit() {
String _numbers = rc.getModelObject();
System.out.println(_numbers);
}
};
add(regForm);
}
}
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Re: RadioChoice - what's wrong?
It does! Thanks a lot! I knew it was something stupid and trivial. Huh, but
it should not cause that still - I was defining TextFields in same way and
then again to add parameters and it went fine.
On Sun, Oct 10, 2010 at 7:11 PM, Andrea Del Bene [via Apache Wicket]
ml-node+2970427-965616561-152...@n4.nabble.comml-node%2b2970427-965616561-152...@n4.nabble.com
wrote:
Hello Zeldor,
I've red your code and it seems that you define variable rc two times:
the first time as form private field and the second time just below
between braces. When onSubmit method calls rc.getModelObject() it uses
private field rc which was not initialized and so triggers a
NullPointerException. Try to remove the second type definition
RadioChoiceString and it should work.
public class Registration extends WebPage {
public Registration() {
add(new FeedbackPanel(errorMsg));
//New user registration form
FormString regForm = new
FormString(registrationForm,new ModelString()) {
static final ListString NUMBERS =
Arrays.asList(new String[] { 1, 2, 3 });
private RadioChoiceString rc;
{
RadioChoiceString rc = new
RadioChoiceString(numberRadioChoice, new
ModelString(),NUMBERS).setSuffix();
add(rc.setRequired(true));
}
@Override
public void onSubmit() {
String _numbers = rc.getModelObject();
System.out.println(_numbers);
}
};
add(regForm);
}
}
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Re: RadioChoice - what's wrong?
186 is System.out.println(_numbers); -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967903.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: RadioChoice - what's wrong?
in that case either your System or your System.out is null :) -igor On Thu, Oct 7, 2010 at 11:35 PM, Zeldor pgronkiew...@gmail.com wrote: 186 is System.out.println(_numbers); -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967903.html Sent from the Users forum mailing list archive at Nabble.com. - 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
Re: RadioChoice - what's wrong?
Well, _numbers is null :) That's why I wonder what's wrong with getting the ObjectModel - I must be doing smth wrong there :) On Fri, Oct 8, 2010 at 8:43 AM, Igor Vaynberg-2 [via Apache Wicket] ml-node+2967914-1064517663-152...@n4.nabble.comml-node%2b2967914-1064517663-152...@n4.nabble.com wrote: in that case either your System or your System.out is null :) -igor On Thu, Oct 7, 2010 at 11:35 PM, Zeldor [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=0 wrote: 186 is System.out.println(_numbers); -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967903.htmlhttp://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967903.html?by-user=t Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=1 For additional commands, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=2 - To unsubscribe, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=3 For additional commands, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=4 -- View message @ http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967914.html To unsubscribe from RadioChoice - what's wrong?, click herehttp://apache-wicket.1842946.n4.nabble.com/template/TplServlet.jtp?tpl=unsubscribe_by_codenode=2967576code=cGdyb25raWV3aWN6QGdtYWlsLmNvbXwyOTY3NTc2fC0xMTUwMjA4NDM=. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967920.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: RadioChoice - what's wrong?
if number is null it will just print null -igor On Thu, Oct 7, 2010 at 11:49 PM, Zeldor pgronkiew...@gmail.com wrote: Well, _numbers is null :) That's why I wonder what's wrong with getting the ObjectModel - I must be doing smth wrong there :) On Fri, Oct 8, 2010 at 8:43 AM, Igor Vaynberg-2 [via Apache Wicket] ml-node+2967914-1064517663-152...@n4.nabble.comml-node%2b2967914-1064517663-152...@n4.nabble.com wrote: in that case either your System or your System.out is null :) -igor On Thu, Oct 7, 2010 at 11:35 PM, Zeldor [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=0 wrote: 186 is System.out.println(_numbers); -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967903.htmlhttp://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967903.html?by-user=t Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=1 For additional commands, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=2 - To unsubscribe, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=3 For additional commands, e-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2967914i=4 -- View message @ http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967914.html To unsubscribe from RadioChoice - what's wrong?, click herehttp://apache-wicket.1842946.n4.nabble.com/template/TplServlet.jtp?tpl=unsubscribe_by_codenode=2967576code=cGdyb25raWV3aWN6QGdtYWlsLmNvbXwyOTY3NTc2fC0xMTUwMjA4NDM=. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967920.html Sent from the Users forum mailing list archive at Nabble.com. - 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
Re: RadioChoice - what's wrong?
Oh come on! no one will want to steal your non-working code! Use http://pastebin.com/ to show your code if you want someone's help ;) Žilvinas Vilutis Mobile: (+370) 652 38353 E-mail: cika...@gmail.com On Thu, Oct 7, 2010 at 11:35 PM, Zeldor pgronkiew...@gmail.com wrote: 186 is System.out.println(_numbers); -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/RadioChoice-what-s-wrong-tp2967576p2967903.html Sent from the Users forum mailing list archive at Nabble.com. - 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
Re: RadioChoice - what's wrong?
Sure, but I posted pretty much everything related to radiochoice :) So I am
just not doing some obvious important steps for making RadioChoice work :)
Code, with all non-related parts removed, looks like that:
public class Registration extends WebPage {
public Registration() {
add(new FeedbackPanel(errorMsg));
//New user registration form
FormString regForm = new FormString(registrationForm,
new ModelString()) {
static final ListString NUMBERS =
Arrays.asList(new String[] { 1, 2, 3 });
private RadioChoiceString rc;
{
RadioChoiceString rc = new
RadioChoiceString(numberRadioChoice, new ModelString(),
NUMBERS).setSuffix();
add(rc.setRequired(true));
}
@Override
public void onSubmit() {
String _numbers = rc.getModelObject();
System.out.println(_numbers);
}
};
add(regForm);
}
}
On Fri, Oct 8, 2010 at 3:58 PM, Zilvinas Vilutis [via Apache Wicket]
ml-node+2968370-862341428-152...@n4.nabble.comml-node%2b2968370-862341428-152...@n4.nabble.com
wrote:
Oh come on! no one will want to steal your non-working code!
Use http://pastebin.com/ to show your code if you want someone's help ;)
Žilvinas Vilutis
Mobile: (+370) 652 38353
E-mail: [hidden email]http://user/SendEmail.jtp?type=nodenode=2968370i=0
On Thu, Oct 7, 2010 at 11:35 PM, Zeldor [hidden
email]http://user/SendEmail.jtp?type=nodenode=2968370i=1
wrote:
186 is System.out.println(_numbers);
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nothing is impossible
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RadioChoice - what's wrong?
Hi,
I am trying to get through with the very basics of Wicket - radiochoice. But
somehow I got stuck and all solutions I tried made my problems even worse...
So, what am I doing wrong?
I have this code:
static final ListString NUMBERS = Arrays.asList(new String[] { 1, 2,
3 });
private RadioChoiceString rc;
{
RadioChoiceString rc = new
RadioChoiceString(numberRadioChoice, new
ModelString(), NUMBERS).setSuffix();
add(rc.setRequired(true));
}
String _numbers = rc.getModelObject();
System.out.println(_numbers);
When I submit the form I get:
NullPointerException
What am I doing wrong then?
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Re: RadioChoice - what's wrong?
cant help you without seeing more code and stack
-igor
On Thu, Oct 7, 2010 at 2:28 PM, Zeldor pgronkiew...@gmail.com wrote:
Hi,
I am trying to get through with the very basics of Wicket - radiochoice. But
somehow I got stuck and all solutions I tried made my problems even worse...
So, what am I doing wrong?
I have this code:
static final ListString NUMBERS = Arrays.asList(new String[] { 1, 2,
3 });
private RadioChoiceString rc;
{
RadioChoiceString rc = new
RadioChoiceString(numberRadioChoice, new
ModelString(), NUMBERS).setSuffix();
add(rc.setRequired(true));
}
String _numbers = rc.getModelObject();
System.out.println(_numbers);
When I submit the form I get:
NullPointerException
What am I doing wrong then?
--
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Re: RadioChoice - what's wrong?
I doubt anything else is needed, it throws NullPointerException at syso
attempt. Rest of the form is working properly - I can of course post more
code, but what would be needed?
Stacktrace is pretty generic too...
org.apache.wicket.RequestCycle logRuntimeException: Method
onFormSubmitted of interface
org.apache.wicket.markup.html.form.IFormSubmitListener targeted at
component [MarkupContainer [Component id = registrationForm]] threw an
exception
org.apache.wicket.WicketRuntimeException: Method onFormSubmitted of
interface org.apache.wicket.markup.html.form.IFormSubmitListener
targeted at component [MarkupContainer [Component id =
registrationForm]] threw an exception
...
...
...
Caused by: java.lang.reflect.InvocationTargetException
at
com.google.appengine.runtime.Request.process-a82d7b755ed3a9dd(Request.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:43)
at
org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182)
... 50 more
Caused by: java.lang.NullPointerException
at com.spiritia.auth.Registration$1.onSubmit(Registration.java:186)
at
org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1538)
at org.apache.wicket.markup.html.form.Form.process(Form.java:934)
at
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:896)
... 55 more
On Thu, Oct 7, 2010 at 11:51 PM, Igor Vaynberg-2 [via Apache Wicket]
ml-node+2967607-1764587878-152...@n4.nabble.comml-node%2b2967607-1764587878-152...@n4.nabble.com
wrote:
cant help you without seeing more code and stack
-igor
On Thu, Oct 7, 2010 at 2:28 PM, Zeldor [hidden
email]http://user/SendEmail.jtp?type=nodenode=2967607i=0
wrote:
Hi,
I am trying to get through with the very basics of Wicket - radiochoice.
But
somehow I got stuck and all solutions I tried made my problems even
worse...
So, what am I doing wrong?
I have this code:
static final ListString NUMBERS = Arrays.asList(new String[] { 1,
2,
3 });
private RadioChoiceString rc;
{
RadioChoiceString rc = new
RadioChoiceString(numberRadioChoice, new
ModelString(), NUMBERS).setSuffix();
add(rc.setRequired(true));
}
String _numbers = rc.getModelObject();
System.out.println(_numbers);
When I submit the form I get:
NullPointerException
What am I doing wrong then?
--
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Re: RadioChoice - what's wrong?
On Thu, Oct 7, 2010 at 5:04 PM, Zeldor pgronkiew...@gmail.com wrote: Caused by: java.lang.NullPointerException at com.spiritia.auth.Registration$1.onSubmit(Registration.java:186) The error is obviously at Registration.java:186 - please show us that code if you can't figure it out. -- Jeremy Thomerson http://www.wickettraining.com
