Re: [Error] This UIObject's element is not set; you may be missing a call to either Composite.initWidget() or UIObject.setElement()
Hi Shravan,
Can you paste the changes you did. I am also getting the same issue.
On Tuesday, June 3, 2008 5:49:31 PM UTC+5:30, Shravan కుమార్ *-*-0-*-*
wrote:
Thanks all,
I got the solution. I was trying to pass params in the constructor it
self, hence the problem.
I have created the object with default constructor and initialized with
initWidget and updated the object with proper constructor. Now its working
fine.
On Tue, Jun 3, 2008 at 5:14 PM, Ian Bambury ianba...@gmail.comjavascript:
wrote:
Here's a little example:
class DisplayBox extends Composite
{
public DisplayBox(String header, String data)
{
VerticalPanel widget = new VerticalPanel();
initWidget(widget);
widget.addStyleName(demo-Composite);
Label headerText = new Label(header);
widget.add(headerText);
headerText.addStyleName(demo-Composite-header);
Label dataText = new Label(data);
widget.add(dataText);
dataText.addStyleName(demo-Composite-data);
}
}
--
Ian
http://examples.roughian.com
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Re: Error This UIObject's element is not set;
Hi Shi!
create a constructor for your MenuHome and move the code from the Composite()-
Method into this constructor.
Extending from Composite is correct! ^^
Don't know why you use a method for doing this... ;)
...
public MenuHome() {
VerticalPanel vPanel = new VerticalPanel();
// Do You really want to set the title (title = tooltip)?
// To see something create a Label with Text an add this to the vPanel
// Example
// Label label = new Label(Good!);
// vPanel.add(label);
vPanel.setTitle(GOOD!);
vPanel.setWidth(100%);
vPanel.setHorizontalAlignment(VerticalPanel.ALIGN_CENTER);
initWidget(vPanel);
// Don't use this here (you do this on your entrypoint alright)
RootPanel.get().add(vPanel);
}
I hope i could help you... ;)
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Error This UIObject's element is not set;
Hi, I'm trying to compose the widget, but I get the same mistake.I
simplified the code of 2 modules that I consider:
-
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Composite;
public class MenuHome extends Composite {
public void Composite() {
VerticalPanel vPanel = new VerticalPanel();
vPanel.setTitle(GOOD!);
vPanel.setWidth(100%);
vPanel.setHorizontalAlignment(VerticalPanel.ALIGN_CENTER);
initWidget(vPanel);
RootPanel.get().add(vPanel);}
}
-
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.Window;
public class Home implements EntryPoint {
private MenuHome menuhome;
public void onModuleLoad() {
Window.setTitle(Title);
menuhome = new MenuHome();
RootPanel.get().add(menuhome);
}
}
--
MenuHome.gwt.xml
module
inherits name='com.google.gwt.user.User'/
entry-point class='com.gwt.client.MenuHome'/
stylesheet src='MenuHome.css' /
/module
-
Home.gwt.xml
module
inherits name='com.google.gwt.user.User'/
inherits name='com.google.gwt.user.theme.standard.Standard'/
entry-point class='com.gwt.client.Home'/
stylesheet src='Home.css' /
/module
--
MenuHome.html
html
head
meta http-equiv=content-type content=text/html;
charset=UTF-8
titleMenuHome/title
script type=text/javascript language=javascript
src=com.gwt.MenuHome.nocache.js/script
/head
body
iframe src=javascript:'' id=__gwt_historyFrame tabIndex='-1'
style=position:absolute;width:0;height:0;border:0/iframe
/body
/html
-
Home.html
html
head
meta http-equiv=content-type content=text/html;
charset=UTF-8
titleHome/title
script type=text/javascript language=javascript
src=com.gwt.Home.nocache.js/script
/head
body
iframe src=javascript:'' id=__gwt_historyFrame tabIndex='-1'
style=position:absolute;width:0;height:0;border:0/iframe
/body
/html
--
ERROR:
[ERROR] Unable to load module entry point class com.gwt.client.Home
(see associated exception for details)
java.lang.AssertionError: This UIObject's element is not set; you may
be missing a call to either Composite.initWidget() or
UIObject.setElement()
at com.google.gwt.user.client.ui.UIObject.getElement(UIObject.java:
511)
at com.google.gwt.user.client.ui.ComplexPanel.add(ComplexPanel.java:
83)
at com.google.gwt.user.client.ui.AbsolutePanel.add(AbsolutePanel.java:
80)
at com.gwt.client.Home.onModuleLoad(Home.java:13)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:320)
at
com.google.gwt.dev.shell.BrowserWidget.attachModuleSpace(BrowserWidget.java:
329)
at com.google.gwt.dev.shell.moz.BrowserWidgetMoz.access
$100(BrowserWidgetMoz.java:35)
at com.google.gwt.dev.shell.moz.BrowserWidgetMoz
$ExternalObjectImpl.gwtOnLoad(BrowserWidgetMoz.java:59)
at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native
Method)
at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:
1428)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2840)
at com.google.gwt.dev.GWTShell.pumpEventLoop(GWTShell.java:720)
at com.google.gwt.dev.GWTShell.run(GWTShell.java:593)
at com.google.gwt.dev.GWTShell.main(GWTShell.java:357)
someone knows the problem?thanks
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