WrongValue in onCreate

asked 2010-10-04 04:25:19 +0800

xmedeko
1031 ● 1 ● 16
http://xmedeko.blogspot.c...

updated 2010-10-04 04:25:56 +0800

Hello,

I would like show the nice ZK error box when the page is created, ie. something like:

public void onCreate() {
throw new WrongValueException(this.textboxLogin, MZul.EMPTY_NOT_ALLOWED);
}

However, instead of the nice error box for the "textboxLogin" field, I got an ugly servlet exception:

org.zkoss.zk.ui.WrongValueException: Zadejte hodnotu
	cz.prins.tiger.web.sys.LoginController$$M$77ae9ade.getLogin(LoginController.java:122)
	cz.prins.tiger.web.sys.LoginController$$M$77ae9ade.doLogin(LoginController.java:147)
	cz.prins.tiger.web.sys.LoginController$$M$77ae9ade.onClick$buttonOK(LoginController.java:320)
	cz.prins.tiger.web.sys.LoginController$$A$77ae9ade.onClick$buttonOK(<generated>)
	cz.prins.tiger.web.sys.LoginController.onClick$buttonOK(LoginController.java:308)
	cz.prins.tiger.web.sys.LoginController$$M$77ae9ade.onCreate(LoginController.java:102)
	cz.prins.tiger.web.sys.LoginController$$M$77ae9ade.__jr_selector__(LoginController.java:50001)
	cz.prins.tiger.web.sys.LoginController$$A$77ae9ade.__jr_selector__(<generated>)
	cz.prins.tiger.web.sys.LoginController.__jr_selector__(LoginController.java:50001)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	java.lang.reflect.Method.invoke(Method.java:597)
	com.zeroturnaround.javarebel.lZ.invoke(JRebel:845)
	java.lang.reflect.Method.invoke(Method.java)
	org.zkoss.zk.ui.event.GenericEventListener.onEvent(GenericEventListener.java:83)
	cz.prins.tiger.web.sys.LoginController.onEvent(LoginController.java:50001)
	org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:197)
	org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:141)
	org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1463)
	org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1247)
	org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage0(UiEngineImpl.java:413)
	org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage(UiEngineImpl.java:300)
	org.zkoss.zk.ui.http.DHtmlLayoutServlet.process(DHtmlLayoutServlet.java:236)
	org.zkoss.zk.ui.http.DHtmlLayoutServlet.doGet(DHtmlLayoutServlet.java:172)
	org.zkoss.zk.ui.http.DHtmlLayoutServlet.doPost(DHtmlLayoutServlet.java:186)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

How to solve this problem? ZK 3.6.5FL

BTW. Why? Because I have a plain JSP/HTML login POST form, which just redirects to the ZK login.zul. If the user has entered wrong data, I want the user to continue within the login.zul.

Many thanks for the help
Andy

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answered 2010-10-04 04:29:07 +0800

xmedeko
1031 ● 1 ● 16
http://xmedeko.blogspot.c...

Well, I have just found a workaround, I call in onCreate():

Events.echoEvent(Events.ON_CLICK, this.buttonOK, null);

But I think throwing WrongValueException in onCreate event listener should be like in any other event listener, shouldn't be?

Andy

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answered 2010-10-10 20:53:00 +0800

ashishd

1972 ● 6

Hi xmedeko,
May be because onCreate is server side only event?

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answered 2010-10-20 01:49:56 +0800

xmedeko
1031 ● 1 ● 16
http://xmedeko.blogspot.c...

Hi ashish,
yes, probably it is the reason. But is there any other way, how to show the error box from onCreate event handler, beside "Events.echoEvent"?