change parent of a node in a CellTree

[Rodrigue]

Hi!

did someone already modify successful a celltree's structure
programmatically? I want to change the parent of a node
programmatically and see the changes displayed on the screen. What I
do now is the following:
• remove the considered node's value from the old parent's
ListDataProvider using ListDataProvider#getList()#remove ().
• add the considered node's value to the new parent's ListDataProvider
using ListDataProvider#getList()#add()
• call ListDataProvider#refresh on both old and new parent
ListDataProviders.

I expected to see the old node move from the old to the new parent.
But what occurs instead, is that the node I wanted to move just
disappear from the tree.
What can be the problem?

And I would also like to know, if there is a way to tell to a CellTree
to redraw itself because the backed data have changed.

Thanks for any help.
Rodrigue

[John LaBanca]

There is a bug associated with inserting a value into the tree, but calling refresh() on the ListDataProvider should workaround the issue.  Do you have any more info that might help debug it?

And I would also like to know, if there is a way to tell to a CellTree to redraw itself because the backed data have changed.

Not currently.  You have to call refresh() on all the ListDataProviders.

Thanks,
John LaBanca
jlab...@google.com

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[Rodrigue Lagoue Njinthe]

Hi John,

 

I already call refresh after any data changes.

 

Rodrigue

[Rodrigue Lagoue Njinthe]

Hi John!

 

here the infos you need for debugging have been send directly to your mailbox.

 

Rodrigue

 

From: google-we...@googlegroups.com [mailto:google-we...@googlegroups.com] On Behalf Of John LaBanca
Sent: Monday, November 01, 2010 6:58 PM
To: google-we...@googlegroups.com
Subject: Re: change parent of a node in a CellTree

 

There is a bug associated with inserting a value into the tree, but calling refresh() on the ListDataProvider should workaround the issue.  Do you have any more info that might help debug it?