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How to refresh the Tree Element while expanding [message #467759]

Thu, 10 May 2007 10:27

Eclipse User

Originally posted by: johansusai.yahoo.co.in

I have created tree using Treeviewer. while expanding the tree element i want to refresh that particular node along with its child. kindly give suggestion on how to do this.

whether to use listener or is there other any way to do it.

Thanks,
johan

Re: How to refresh the Tree Element while expanding [message #467773 is a reply to message #467759]

Thu, 10 May 2007 13:10

Eclipse User

Johan,

Try using a ITreeContentProvider with your Treeviewer.
ITreeContentProvider#getChildren(Object) will give you the flexibility of
caching your results or always fetching the most current children.

treeviewer.setContentProvider(new ITreeContentProvider() {
// implement interface
});

David

"Johanantonysusai" <johansusai@yahoo.co.in> wrote in message
news:15551278.1178807288426.JavaMail.root@cp1.javalobby.org...
>I have created tree using Treeviewer. while expanding the tree element i
>want to refresh that particular node along with its child. kindly give
>suggestion on how to do this.
>
> whether to use listener or is there other any way to do it.
>
> Thanks,
> johan

Re: How to refresh the Tree Element while expanding [message #467781 is a reply to message #467773]

Thu, 10 May 2007 13:35

Eclipse User

Hi,

That's not true. When the items are already created the this method is
not called any more. You need to to call treeViewer#refresh(Object).
This will refresh the children from this object.

Tom

David Kyle schrieb:
> Johan,
>
> Try using a ITreeContentProvider with your Treeviewer.
> ITreeContentProvider#getChildren(Object) will give you the flexibility of
> caching your results or always fetching the most current children.
>
> treeviewer.setContentProvider(new ITreeContentProvider() {
> // implement interface
> });
>
> David
>
> "Johanantonysusai" <johansusai@yahoo.co.in> wrote in message
> news:15551278.1178807288426.JavaMail.root@cp1.javalobby.org...
>> I have created tree using Treeviewer. while expanding the tree element i
>> want to refresh that particular node along with its child. kindly give
>> suggestion on how to do this.
>>
>> whether to use listener or is there other any way to do it.
>>
>> Thanks,
>> johan
>
>

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