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Problem regarding the treeviewer.. [message #194307]

Thu, 15 February 2007 06:17

zakir Hussain

Messages: 76
Registered: July 2009

Member

Hi All,

I am having the problem in treeviewer.

How to fire the selection on the treeviewer with out expanding all the
elements of the tree.

MyProblem:

I am having a treeviewer with around 10lakh elements

I have stored some elements of treeviewer in a list based on some
categeory.

I want to fire the selection on the treeviewer for the elements in the
list

I am firing the selection in this way

myTreeviewer.setSelection(new StructuredSelection(elementfromList),true);

But the selection is not happening.. Unless and untill I expand the tree
once.

But as I have so many elements in the tree.. .. Performance issues are
coming.

Can you plz suggest me any alternative regarding this

Regards,

Zakir

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Re: Problem regarding the treeviewer.. [message #194347 is a reply to message #194307]

Thu, 15 February 2007 11:47

Eclipse User

Originally posted by: merks.ca.ibm.com

Zakir,

It sounds likely that your content provider is not behaving correctly
with respect to its getParent implementation. This method needs to be
implemented correctly in order for
AbstractTreeViewer.internalExpand/getParentElement to know which branch
to expand to find each node in the tree.

zakir wrote:
> Hi All,
>
> I am having the problem in treeviewer�.
>
> How to fire the selection on the treeviewer� with out expanding all
> the elements of the tree.
>
> MyProblem:
>
> I am having a treeviewer� with around 10lakh elements�
>
> I have stored some elements of treeviewer in a list based on some
> categeory�.
>
> I want to fire the selection on the treeviewer for the elements in the
> list�
>
> I am firing the selection in this way�
>
> myTreeviewer.setSelection(new StructuredSelection(elementfromList),true);
>
> But the selection is not happening.. Unless and untill I expand the
> tree once�.
>
> But as I have so many elements in the tree.. .. Performance issues are
> coming�.
>
> Can you plz suggest me any alternative regarding this�
>
> Regards,
>
> Zakir
>
>

Report message to a moderator