Hi Christian,
here's the output:
019415 tt.ui.module.tree.Tree[648]: Tree[648]
019417 tt.ui.module.tree.Tree[648]: TreeFolder[915]
019419 tt.ui.module.tree.Tree[648]: [ ]
019824 Tree[undefined]
019826 true
019827 true
019829 TreeFolder[undefined]
019830 null
Great! That seems to be the reason! this.isDisposed() and
this.__rootNode.isDisposed() are both true.
But then why is it disposed? I still have a reference that points to that
object.
2010/9/22 Christian Hagendorn <[email protected]>
> Hi Marius,
>
> that's sounds really strange. It seems to me that the instances are
> disposed when your "update" listener/handler is executed. Could you
> please check this by:
>
> snProxy.addListener("update", function() {
> this.debug(this);
> this.debug(this.isDisposed());
> this.debug(this.__rootNode.isDisposed());
> this.debug(this.__rootNode.getChildren());
> this.refreshTree();
> }, this);
>
> Cheers,
> Chris
>
> Am 22.09.2010 14:17, schrieb marius123:
> > Hi all,
> > I have a strange problem. Have a look at this code:
> >
> > __applyDataModel: function(dataModel) {
> > this.debug(this);
> > this.debug(this.__rootNode);
> > this.debug(this.__rootNode.getChildren());
> >
> > // Do some stuff...
> >
> > // Then update
> > snProxy.addListener("update", function() {
> > this.debug(this);
> > this.debug(this.__rootNode);
> > this.debug(this.__rootNode.getChildren());
> > this.refreshTree();
> > }, this);
> > }
> >
> > This is an apply-method in a class called tt.ui.module.tree.Tree.
> > The code here simply prints the name of the class and the content of the
> > class variable __rootNode to the console. First directly in the method,
> and
> > a second time after the "update"-event handler function is called. This
> is
> > the output:
> >
> > 019406 tt.ui.module.tree.Tree[648]: Tree[648]
> > 019408 tt.ui.module.tree.Tree[648]: TreeFolder[915]
> > 019409 tt.ui.module.tree.Tree[648]: [ ]
> >
> > 019771 Tree[undefined]
> > 019773 TreeFolder[undefined]
> > 019774 null
> >
> > As you can see, the hash codes are now undefined. The class variable
> still
> > contains the qx.ui.tree.TreeFolder object but now the getChildren-method
> > doesn't return an empty array but null.
> >
> > What can have happened to the Tree object here? In my application I can't
> > figure out any reason for this. As far as I can see nothing concerning
> the
> > Tree object is changed in between the output of the two debug blocks.
> >
> > Just in case this might help: The Tree object is initially created in a
> way
> > like this:
> > var M = qx.Class.getByName(modules[j].type);
> > var m = new M();
> >
> > Cheers
> > Marius
>
>
>
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