When I override the method SimplePanel.clear() to remove all elements of
the contained element in SimplePanel, and then add a widget
throug setWidget() I receive the error (see the complete error below:
---
this.appendChild is not a function"?
----
I remove all element after SimplePanel performs a clear itself such that it
removed the contained widget, something like (subclass of SimplePanel:
----
public final void clear() {
super.clear();
UtilsWidget.removeAllChilds(getElement());
}
}
---
I remove all child elements by iterating through all children (in reversed
order) and removing them when the child is of type Element.
When I not remove all children, all is fine, but then the added extra
elements aren't removed :(
Why is this?
I perform this step as I also add "lightweight" text elements to the
SimplePanel that I also want to be removed.
The exact exception (using gwt 2.5.0):
-----
com.google.gwt.core.client.JavaScriptException: (TypeError)
@com.google.gwt.core.client.impl.Impl::apply(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)([JavaScript
object(2812), JavaScript object(1793), JavaScript object(2822)]):
this.appendChild is not a function
com.bv.gwt.common.exception.ExceptionHandlerDefault - - Handling an
exception. Exception: com.google.gwt.core.client.JavaScriptException:
(TypeError)
@com.google.gwt.core.client.impl.Impl::apply(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)([JavaScript
object(2812), JavaScript object(1793), JavaScript object(2822)]):
this.appendChild is not a function
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:249)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:571)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:279)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:242)
at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:293)
at
com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:547)
at
com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:364)
at java.lang.Thread.run(Thread.java:662)
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